13.Serrated edge of the measuring tape
It’s there so that you can mark where your measurement is without worrying about getting your hands free to mark!
14.Little bumps on the “F” and “J” keys on a keyboard
In 10-finger typing, the “F” and “J” keys are the home keys, where your index fingers rest. The little bumps let you find your way back to the home position without looking down at your keyboard.
15.Tic Tac Lids
Have you been eating Tic Tac wrong all this while? The cap is meant to be used as a dispenser to take out one Tic Tac at a time.
Simply twist the tab around, and center your straw. They are designed to hold your straw.