Reddit mentions of The Stuff Dog Conditioner.Ready to use,16oz

Lots of big dog stuff here! Here's some nice things for the little guys (~25 lbs and under). Many of these items are good for big dogs, too; will note them with a * sign and list them first in each section.

Treats

• Himalayan Dog Cheese Chew*: Long-lasting hard cheese chews; can be microwaved to make "cheesy popcorn" for your dog when it gets small enough to pose a swallowing hazard. Comes in a variety of sizes.
  
  
• Brushless Toothpaste*: Our dog LOVES this stuff, and it keeps his breath smelling awesome. Also helps keep his teeth clean. May want to introduce these into the dog's diet slowly, as some are sensitive to the ingredients but acclimate over time. Comes in an even smaller size for the really tiny dogs, and bigger sizes for the big dogs :)
  
  
• Freeze-dried chicken*: Easy to break into small pieces and sprinkle over your dog's kibble or regular food.
  
  
• Stella & Chewy Meal Mixers*: Great to sprinkle over your dog's regular food for both nutrition and novel taste.
  
  
• Fruitables Minis: Small and low-calorie; great for clicker-training your dog. Comes in a wide variety of flavors.
  
  
• Crazy Dog Bacon Treats*: Also small and very-low calorie; another good clicker-training tool.
  
  Toys
  
  
• KONG Mini Squeaky Tennis Balls*: Great for dogs who like either balls, squeaky toys, or both! My dog had zero interest in balls before these, and they're still the only ones he'll play with. Come in lots of sizes; not good for strong dogs who like to chew up their balls.
  
  
• Dog Tornado*: Easy introductory puzzle toy that's not too big for little dogs. Good for kibble, wet food, and treats. May be too big for dogs under 7 lbs.
  
  
• Dog Tower: Another great introductory puzzle toy suitable for small dogs. Good for kibble and small treats. Not sure how this'll hold up to big dogs, although I think it'd be fine with the gentler ones.
  
  
• JW Treat Pod: Kind of like the Kong, but better suited for gentler, 'licking'-type dogs. Easier to clean out as well, IMO; the small Kongs are so hard to get completely clean even with a brush.
  
  
• Outward Hound Flirt Pole: Fun and easy exercise, the Outward Hound version is more lightweight and suited for small dogs.
  
  Harnesses, Collars, & Safety
  
  
• Pet Stairs*: Large collection of pet stairs. Some on this page are suitable for large dogs as well.
  
  
• Hurtta Active Dog Harness*: High-quality dog harness for dogs that love to run around the outdoors in all kinds of weather and elements. Comes in a variety of sizes; for dogs 7+ lbs.
  
  
• Ruffwear Swamp Cooler*: Comes in XXS, XS, and S. Great for keeping your dog cool in the summer if you don't live in a humid area.
  
  
• Hurtta Pet Overall*: Great for rain and snow; comes in a variety of small sizes. Fit perfectly on our Pom mix and very high quality.
  
  
• Musher's Secret*: Protect your dog's paws in cold weather.
  
  
• Sleepypod Clickit*: Crash-tested car harness, comes in a variety of sizes.
  
  
• Sleepypod Mobile Carrier/Car Seat/Pet Bed: Crash-tested dog bed/car seat/carrier!
  
  
• Lil Pals Step-in Mesh Harness: For the seriously small dogs.
  
  
• Ollydog Marin Collar: Completely waterproof, rustproof, extremely durable, easy to put on...the perfect collar!
  
  Grooming
  
  
• The Stuff Detangler and Conditioner*: Keeps your dog's coat looking clean and glossy; easy to apply and doesn't have a strong odor.
  
  
• Lil Pals Grooming Kit: Miniature grooming tools for your miniature dog at a very affordable price.
  
  Edited to add more+formatting!

I highly recommend The Stuff after bathing and conditioning! Its a finishing spray that leaves the coat very light and in most cases will even keep your dog feeling cleaner longer. You can even use it in between baths when you brush to keep his/her coat feeling nice and soft.

Another great thing about it is that you never need much and a bottle will last you months for a little yorkie :)

I own and love this comb and this looks very similar to a fantastic comb one of my coworkers uses.

For slickers, Les Poochs makes some pretty awesome ones - their red one is amazing at dematting! Unfortunately they're also really expensive! If you don't mind spending, the Pro Brush (F/F) would be the way to go. If you're cheap like me, this has very good reviews and should perform acceptably as well. I personally like flexible slickers, so I recommend them.

Truthfully I seldom use undercoat rakes. A high velocity blow dryer (k9 brand is good - don't bathe at home without a blower, it's a good investment) serves the purpose for me both with my own dog and with the dogs at work. Still, if you want an undercoat rake, stay away from things that have blades - Furminators, Furminator knock-offs, Mars Coat Kings, coat king knock offs. There's a time and place for those but I would not personally use them on a spitz of any breed. Something like this will do. I also like shedding combs though I haven't found one without a handle yet.

Additional stuff: you need a good pair of nail clippers, and I also recommend spray like The Stuff or Ice on Ice to keep things feeling nice and fresh.

You could try switching to a fish flavored food. However, Earthbath makes a few deodorizing sprays that work as leave in conditioners. Our groomers use The Stuff its concentrated so it lasts forever. Smells amazing and definitely helps keep flakes away!

I've used a variety in the past and have recently switched to this one

I use The Stuff detangling spray. It really helps. Bizarre word of warning though, don't spray it over a wood or tile floor. Any spray that doesn't land on your dog will land on the floor and make it very slippery! I only spray it over carpet or rugs.

I also use Kinky Curly Knot Today as a leave-in conditioner on problem areas like the arm pits. It's a product for humans but it works on dogs as well. I've also rubbed a bit of this into a mat and then combed it out.

If you want to untangle dog hair you need some of this called The Stuff. This stuff works WONDERS! At my job we sometimes have to groom dogs like Shih Tzu that really tangled. I sprayed some of this stuff my boss said to use and rubbed it into the coat. The brush started to just flow through!

So, we avoid undercoat rakes and combs on the advice of our breeder (don't want to pull out or cut any of the active undercoat). It took us a while to really get that she was right (at least for our pup), but it is what we've had the best luck with. We use a metal comb to do the line-comb technique as /u/cpersall suggests, and then we finish with just a normal human pin-brush (which he likes quite a bit) for the topcoat. We also brush him at least every other day while we're watching TV of the evening.

You asked about shampoo and such: we've had enormous luck with The Stuff spray in conditioner while we're brushing him out. Makes him look purty (seriously got so many compliments at the herding-dog park parties that we now have half the town using it on Corgis, Aussies, and BCs). We've been using AvoDerm for shampoo (about once every two-three weeks depending on how much mud he's gotten into). Aussies tend to be great self-groomers. We only really give him baths when he's muddy and we don't want it in bed or on the couch. Also he loves bathtime, so sometimes I give him 'baths' sans shampoo on hot days. Drying off with the towel is the Best Game Ever!