4. Make her car go gaga.
materials needed:
-1 car (or vehicle of any sort)
Sneak into your sister’s car on March 31 after she gets home from work. Proceed to turn every setting to its highest capacity: the radio, the air conditioning, etc. (Just not anything that will kill the battery, unless you really want to get back at her.) Don’t forget to turn the mirrors completely around, move the seats into outrageous positions, and set the GPS to somewhere in the middle of the South Pacific. She’ll be in for a shock the next morning.