14. You can use AAA batteries instead of AA ones, just fill the gaps with tin foil
15. You can use almost every USB port (even TV ones) to charge your mobile phone while traveling
16. The most amazing way to cut cherry tomatoes
17. Create a lamp with a white plastic bottle
19. If you add a spoon of baking sodato your boiling eggs, the shell will come off so easily!
20. Fold a t-shirt like a boss