Reddit mentions of Travelon Laundry Soap Sheets, 50-Count

I mostly take what you expect: a portable charger, calling cards (assuming I have to call internationally), credit card and cash, essentials (makeup/hygiene care/hair products/etc), a good pair of sneakers and my favorite heels, etc.

If you're going somewhere with the intent of swimming then a full body swimsuit is necessary in my books. Regardless of how much sunscreen I use I will end up like a tomato without one. This is the one I bought. I got my first one last summer and got six uses out of it with no complaints. I'll probably buy another one this year to be on the safe side but the quality is great (especially for the price). I think it's cute, a lot cuter than many "regular" suits, and it's definitely comfortable.

Other useful items I try to bring:

• Soap Sheets: They dissolve with a bit of water and come in handy for laundry. No TSA worries here!
  
  
• A bra stash: I would've never personally bought this for myself, at least not initially, but it was a brilliant gift from my mother when I went away to school. There's a slew of reasons why you may not want to carry a purse or wallet. This will be your saving grace. It's not like the majority of us haven't done this anyway....
  
  
• Compression Socks: Long flights will typically cause your extremities to swell up but no more! This is a serious, serious lifesaver on long trips. I learned this the hard way on my flight to Japan.
  
  
• Probiotics: I know that sounds crazy. I KNOW. However, I've never gotten sick from a flight OR experienced much jetleg while having these in rotation five days prior to flying, during, and after. Worth it.
  
  
• Diva Cup: You should be using these anyway during menstruation, but if you aren't, then while traveling is a great way to start. You won't have to worry about pads or tampons anymore. It's also a lot healthier and easier!
  
  
  

-Travel surge protector with USB port: http://www.amazon.com/Outlets-To-Power-Strip-USB/dp/B0018MEBNG/

-Outlet converters

-Combination lock

-Make sure to turn data roaming off on your smartphone. Also download Skype to make long distance calls, and Viber to text.

-Microfiber travel towel

-Laundry soap sheets (http://www.amazon.com/Travelon-Laundry-Soap-Sheets-50-Count/dp/B000Y0CL8K/) if you're planning on doing any of your own washing in a sink/shower. I generally only use them for socks/underwear. On that note, I highly recommend Icebreaker brand socks/underwear. Expensive, but very comfortable, and made out of Merino wool. It sounds gross, but you can wear comfortably for 48 hours without washing without any odor whatsoever - read up on them. FWIW, I brought two pairs of boxer briefs for a 2.5 week trip in SE Asia, and washed in the sink... they also dry very quickly (within a few hours of being hung up).
-A few doses of each advil, cold medicine, Imodium... and any other meds you may need.

You know those little breath-freshening strips Listerine makes? They're a great idea in themselves, and the principle has been used to make laundry detergent sheets! They're so great, won't spill in your bag, and you can lather up some clothes in a sink. Also, a $.25 rubber ball--for bouncing off the wall to entertain yourself, and to plug up said sink to wash clothes.

Also, lots of those very tiny panty liners will help keep undies and pants fresher longer.

I would add this one item. I LOVE it, tiny, super lightweight and works great with a hotel or hostel sink to do easy laundry. http://www.amazon.com/gp/product/B000Y0CL8K/ref=oh_details_o08_s00_i00?ie=UTF8&psc=1 VERY worth it!