Joel on Software suggests that fixing Mom’s computer is a most excellent Mother’s Day gift. If you can’t make it to Mom’s for some reason (shame on you), you can do this remotely. To make this easy, Fog Creek Copilot will be free on Sunday. Just go to the site on Sunday and collect your free pass. Once you’re hooked up to Mom’s computer, you might want to use Lifehacker’s list of things to do/fix/clean as a starting point.
If you’ve never heard of Copilot, it is a service and (temporarily installed) piece of software that allows you to control a remote computer. It works through routers and firewalls, so it is great for getting though to PCs on a home network. Learn more on Fog Creek’s Site.