We've spent a lifetime using some products wrong and making our lives harder than they should be. As it turns out, things we use every day have the most clever uses. Find out which ones you've been using wrong your whole life:
Most of us thought the red end was for erasing pencil marks and the blue end was for erasing pen marks. It turns out that both sides are actually used for pencil marks, just on different kinds of paper. The red is meant to erase marks on thin paper, whereas the blue end is used to erase dark marks on heavier paper.
5. The horizontal buttonhole at the top of your shirt
Buttonholes on a shirt are all vertical except for the top one. That part of the shirt is usually the tightest since it is right below your neck. The horizontal buttonhole prevents the button from coming undone.