i have my desktop ( the one i am on now, ) but i don't know what to use my old laptop for.. its a emachine m2350

Answer:
If you’ve a flatscreen HDTV you can connect it to your Television through a VGA cable. Then use it as a media center, eg purchase movie rentals on the web and watch them on your Television. It will fit well in an entertainment center. And use it to surf myspace from your lazy boy if you get a wireless mouse and keyboard.
Answer:
Use it as backup storage for the desktop. Periodically (and remember to do it on a regular basis) copy over updated information from all your personal folders to the old box. Keep the box in a part of your home separate from (at the other end of the house from) the desktop so if an earthquake or flood or explosion or errant semi or burglar rumbles through, you'll have a better chance of having at least one good copy.
Answer:
Use it for doing things like schoolwork or office work. Wipe the hard drive clean and use it for typing documents or making slideshows. Then save everything thats more demanding for the desktop.
Answer:
for storage :) or you can sell it, either whole or by parts
Answer:
Sell it on eBay.