Replacing the hard drive in my ancient Dell before it dies completely and doing a fresh install of Windows XP and all its associated upgrades to get the thing running relatively speedy again. It became the "family" computer after I upgraded and I swear the other residents of the household have that poor thing working at a crawl these days. Replacing the hard drive is as good a reason as any to start fresh.
Also: Shoveling.
Edited, Jan 20th 2012 3:12pm by Jophiel