It's easy to forget to make back-up copies of photos, addresses, email, projects, or documents, but if your computer dies, will you lose important information? Whether you burn things to CD, save on a flash drive or external hard drive, or subscribe to an online backup service, now's a good time to make sure you have recent copies made.
As I like to say, you don't have to save all your data, just the data you don't want to lose!