Reddit mentions of Jackery Giant+ Premium 12,000 mAh Dual USB Portable Battery Charger & External Battery Pack (Total 3.1A Output) for iPhone 8/8 Plus, iPhone X, Galaxy S8, S8+ & Other Smart Devices (Silver)

Part 2/7: Accessories

• Headphones. Git gud ones. Even if you don't use them for music or movies or anything, they can help you isolate yourself from the busy ongoings of the an airport. Airports are found to some of the most stressful places in the world, so even just sitting there you'll absorb some of the stress. Solution: isolate yourself as much as you can... put on those Bose QC25s, turn on the sound cancelling and enjoy the quiet. Or the music.
  
  
  
• Comfy shoes. I carry a pair of Toms with me, which I use as slippers around the hotel room and after getting onto a flight (like long ones. I don't even get up on flights under 45 minutes, but 12 hour red-eyes, slippers are nice).
  
  
  
• I also carry a good set of PJs or sweatpants, and change on flights 6+ hours in duration. Just more comfy than sleeping in your suit. Sometimes I get weird looks, but most people say it's not a terrible idea. At least I'm comfortable.
  
  
  
• I do not carry many toiletries with me, if I can avoid it. I try to buy it at my destination if I can't stand the hotel brand. Personal favorite is Rose31 by Le Laboavailable at Fairmont properties. The scent might be too much for some people, but I really like it. Extra glasses, contact lenses, solution, etc. Research your destination to determine if you will need your allergy medications. Combs and brushes, depending on what you need. I have a Dollar Shave Club subscription, and been very happy about it. As mentioned, I don't carry toiletries if I can avoid it, but I do carry a moisturizer. I've been known to abuse my Amazon prime to order toiletries to the hotel, usually the sample sizes that will last me one week.
  
  
  
• A good nice watch. Tame down the smartwatches and fitness trackers. No, the bright pink custom band for your rose gold apple watch does not go with your conservative suit. No, I don't care that it cost you more than your fiancees engagement ring. Good for you. That being said, I look forward to how iBeacons and Smartwatches can make traveling easier, guiding you step by step to lounges or the shortest most endurable security line.
  
  
  
• Purrell or Hand sanitizer, if allowed.. if not find something non-flammable. So you don't have to run to the bathroom every you pick up that shitty, greasy, absolutely horrible wanna-be pastry from Starbucks the lounge.
  
  
  
• External USB battery, for obvious reasons.
  
  
  
• Extra chargers for Laptop and Phone, as well as extra cable for Headphones. The extra chargers for me is easy, since I have two 15" rMBPs.
  
  
  
• I also carry a Moleskine diary, a nice pen with extra ink, various pens and pencils, and a few ring-bound notebooks to sketch and write notes.
  
  
  
• A small sowing kit and an extra button or two has never hurt anyone and it's been used.
  
  
  
• A mouse. I carry a Razer Naga Chroma... I use the thumb grid more than you would think. I have macros and the such mapped to it.
  
  
  
• My iPad, which I can access case studies and magazines from. I keep a library of case studies, white and grey papers, so I can use them as references at work. Potentially. I also keep a DayOne diary with cases and notes from other projects, recycling enabling the synergetic use of previous ideas and methods.
  
  
  
• A lot of the above goes into my carry-ons, but I will split my toiletries between checked and carry-on if I check a bag. I'm also more inclined to take my own stuff (toothpaste, gel, lotions, soap, etc.) if I check my stuff.
  
  
  
• Get a wallet for your documents.
  

the jackery series have done me well. got this one and a smaller one.

My suggestion would be to get a USB power cable (something like this) and an external USB battery (something like this). I've personally used that cable with that battery and my 3DS while on the go.

Just bought this one yesterday: https://www.amazon.com/Jackery-Portable-External-Panasonic-Aluminum/dp/B00AB174ZW/ref=sr_1_1?s=wireless&ie=UTF8&qid=1467913010&sr=1-1-spons&keywords=jackery+giant&psc=1