I use mine for scrapbooking and some cards. There are soooo many ideas out there to use it for. A lot of the words that you see on walls are done with a Cricut. You have to buy special vinyl paper and adhesive but I don't think that they cost too much. You can add embellishments to picture frames. I've used mine to make letters for church functions. There are even ways to do acid designs on glass.....but I've never done that. There is a Cricut website that will have a lot of ideas and answer questions.
http://main.cricut.com/community/default.aspx