Irritated by all the tears while cutting an onion? Just trim the ends of the onion and place them on full power in the microwave. You eyes will no longer sting when you cut the onion. Another trick for which a microwave comes in handy is to reusing your stamps. If you want to reuse a stamp and want to remove it without causing any damage then just put a few drops on the stamp and place the whole letter in the microwave. It will peel off easily.