Clean the house to pleased your parents when they come home,watch movies,eat a cookie :) , be on Ask.com , go outside and take a walk around your area , draw , call your friends and do something fun together , etc. :)
Play video games. Ha, watch tv, run around the house screaming with Avenged Sevenfold (or whatever you choose) blasting., dance around barefoot outside.... I did that in the rain with my brother once :)
Reorganize your room. If you got new stuff for Christmas, go thru the old stuff. Get rid of what you don't want, need or use any more. Throw out what is broken stained or torn. What is in good condition you can either sell at a consignment shop or even better donate to Goodwill or another charity.