Reddit mentions of Dynarex Medicaine Insect Bite & Sting Swab, .02 oz, 10 Count

Multipurpose waterproof match case. I prefer this case because it's not much bigger than other waterproof cases, but has other stuff built into it. I put waterproof matches in it along with the striker strip from the package. The whistle is good for signaling. The other functions are marginal, so I supplement them with the actual things, which consist of a signal mirror, lensatic compass, and emergency fire starter.

A stove and solid fuel. I was pretty impressed with this particular one when I received it. It's stainless steel, well constructed, and you can store four fuel tabs inside of it.

A multitool and a fixed-blade knife. I don't have either of these specific models, but they seem pretty decent.

A folding shovel. These are good for burying waste, helping a car gain traction in the winter, etc.

A self-adhesive bandage. This is a three-pack. The single one cost $4 locally. Buy this one and leave the other two in your medicine cabinet. Wrap the remaining one around a piece of cardboard and put it in your emergency pack.

Disposable antibacterial wipes.

Antimicrobial silver gel. Like Neosporin, but better. Stays on a wound for multiple days without covering, and the colloidal silver is a strong antimicrobial agent. See the oligodynamic effect.

Dust masks. This is for a 50-pack, but for half the price, you only get 10 at a local store. These help prevent you from spreading germs if you're sick, and keep you from inhaling macroscopic particles if you're in a dusty/dirty area.

QuikClot sponge bandage. This helps to stop bleeding from major injuries. Along with an Israeli battle dressing you have two great ways to help stem major bleeding, separately or combined.

Local anesthetic for stings. Good for numbing injuries other than stings, too.

Sterile pads, 4” x 4”.

Sunscreen.

Cigarette-adapter power inverter. Good for charging small electronics.

Hand warmers.

Work gloves and watchcap.

All of the following are probably best bought in stores or scrounged up around the house:

Toothbrush, toothpaste, floss, all with obvious uses.

Aspirin, for heart attacks and pain, ibuprofen for pain, anti-histamine for allergic reactions, and Imodium or off-brand equivalent for diarrhea. I can't stress having Imodium enough. Having cramps and shits can render you unable to do anything for long periods of time, even more so than other ailments.

A disposable razor can be used to shave to keep up appearances, or to shave the area around a wound for better bandaging.

Maxi pads and tampons can be used as intended as well as to prevent bleeding from wounds.

Toilet paper. Wrap it around a piece of cardboard to save space.

Bandanas or an old shirt can be used to make a sling, protect yourself from the sun, filter macroscopic particles out of water, filter dirty/dusty air, etc.

Hot chocolate with caffeine added can be used to help stay alert.

Lighters are a must-have to start a fire.

I also have a Ziploc bag containing about ten cotton balls soaked in petroleum jelly. They're great firestarters.

Cash. Keep various bills and coins in an amount that you think is suitable for emergencies.

Maps. Carry folding maps of your area, state, and surrounding states.

I think that covers everything that I have. There's a lot of redundancy, but it all fits in my bag, so I'm happy with it. I'm definitely interested in hearing thoughts as to what can be added or changed.