These work well; lots of templates available
I used these to make a business card for my boyfriend. They worked great. It's so easy. Avery provides lots of templates to use, but you can also very easily find other free business card designs online. The perforations are good quality, making it easy to tear the cards out (without ripping your precious cards). I've used these for other projects, as well, including making membership cards for my local swing dancing association. Avery's website also gave great ideas for uses, like place cards for wedding guests at the reception or place a hole punch through along with a nice ribbon to serve as a To: From: label for a homemade gift. Great stuff.