Some examples of things you can sign people up for so they get certain things at peoples houses without a credit card number (well, atleast you could at one time). Republican/Democrat volunteer thing. They will call you and send you newsletters and basically bug the **** out of you. Trojan Condom. You can send them a free condom through their site... send them a mint tingle or a magnum just incase they have a family or parents who may get pissed. Mormon.org. My friends signed me up for this. This is why I got a ton of Mormon calls and the Mormons came to my house offering a free book of mormon. It was a pain in the ass to get them to stop calling. New York Times. You may not be able to still do this... but I did it back a few years ago. Pottery Barn magazine, etc. Sign them up for ANY free lame magazine you can find. Military. Sign them up to get calls from the Army, etc. This will surely piss anyone off. There are so much more... just find some pop ups, enter their info and bam they will be getting calls and mail in no time at all.