I have a laptop and a desktop at home, both connected to the same wireless router.

How do I share files between the two computers?

Thank You.

Pick a folder in Windows Explorer that you want to share and right-click on it, you'll see an option related to sharing. Select it and follow the guide. Hard to give you more not knowing what OS you are running.

Read more here: Windows XP Simple File Sharing (http://www.practicallynetworked.com/sharing/xp/filesharing.htm)