Something as simple as a paper airplane flying though the air can be just what you need to unwind after a long day. Grab some paper and look up a tutorial for airplane folding. Decorate your planes with markers and stickers if you like. Ask some friends to join in, or make a bunch and throw them for your pets to catch! (they’ll love it!) You can have a contest to see which ones go the furthest, spin the best, or have the coolest flight pattern.