I bought one of these for my ID and credit cards because every time I went for a “quick trip” out of the apartment, I kept dropping them all over the place like a monster. The adhesive on these babies goes on super easily and is strong as heck, and the wallet is thin enough that I can still jam my phone into my back pocket without any issue, which is important to my lazy sensibilities. I’ve had this wallet on my phone for a year now, and it still looks great and holds my cards quite snugly.
Promising review: “Has completely replaced my wallet! I pretty much only need three cards in my day to day life — my credit card, my ID, and my public transit card. This sleeve holds all three perfectly without ever losing a single one, and has held up really well despite how careless I am with my things, so I haven’t carried a wallet in months. It’s pretty tight at first but will stretch to hold your cards as needed — note that this means that if you take a card out, it will be fairly loose for the others, so be careful. I got the pink color and it’s picked up a little color around the edges from my jeans, but otherwise has remained pretty much the same color. I highly recommend this if you’re looking for a stick-on wallet sleeve for your phone!” —Alexis
Get it from Amazon for $13.95 (available in 13 colors).