Sometimes I don't want to haul around my entire purse, and my pockets are never quite big enough to hold my phone, keys, and abbreviated wallet, so I decided I needed to make a wristlet. I could have just bought one, but I particularly wanted one with an adjustable wrist strap for an added measure of security, and apparently all the wristlets I have seen on the market have a stationary loop that is far too big for my tiny wrist.
A quick Google search revealed this free pattern to me, Patchwork Wristlet by Ayumi Takahashi. I didn't make the outer part patchwork, but I followed the rest of the directions. I always appreciate clear instructions and photos, and this pattern didn't fail me. I only had to rip out one seam and it was my own fault for not following the directions.
The wrist strap was my own idea, just a short loop sewn down at one end and the other end threaded through.