The coolest new gadgets I’ve used in a long time is the new folding SD card from Sandisk. 
This storage card literally folds, allowing you to insert it right into the USB port of your desktop or laptop computer. No more card reader/writer needed! This also means it doubles as a USB drive. Very, very useful.
Folding SD card
I have one of these and I love it! It’s one of those “How did I ever live without this” kind of things.