I'm pretty new to the Cricut world...actually I got it last Christmas, but haven't used it all that much. Since I don't have too much time these days, I mostly use it when I make cards. My question is, what cartridges would be the most useful when making cards? Are there certain cartridges that are more favorable for my use? I mostly make birthday, graduation, or holiday cards. Whenever i go to make a card, I just feel like I don't have the right fonts or graphics in my current stash.