Before anyone gets upset, I know that not everyone who sells door-to-door is participating in a scam. I still think that a lot of the high-pressure sales techniques often used in this setting are not cool. If I want to buy something, I'll go to the store or online. If you want to give me some information that I can mull over, I guess that's okay. But if you want to tell me you're a poor college kid trying to win scholarship money, you better hope that I don't Google the company name to find all sorts of sketchy information.
If you want to read about my experience, check out Warning: Don't Open the Door to Magazine Sellers for Unlimited Sales, Inc
You can also visit How to Identify a Door-to-Door Sales Scam for information on how to protect yourself.