Go into a business and not talk to anyone because you are scared-
This is a wonderful way to put more money in your pocket. If you want to improve the effectiveness of this strategy, just walk around the store for 10 minutes, and waste time. Buy something to drink and put it on your credit card, this will cause you to lose money.
Instead of pitching, waste the person's time-
This is another good way. Just walk into the store and talk to the business owner without actually getting to the point. Talk about him about the smell of the store, but never actually sell. If he does want to know what you are selling, be as feeble and weak-willed as possible
Skip businesses because you think they won't buy-
This is also a good way to make $0 cold calling. If you see a business, use your ESP powers to divine whether or not the person will buy anything from you. This will keep you from accidentally finding an interested prospect.
Only work for 2 hours-
This will drain your bank account and rocket-launch you toward $0 in record time. Decide to go home after only 2 hours of working. This will ensure that you have the least possible chances of success.
Hopefully this will help you achieve your goals of $0.
If for some reason you can't make $0 doing this, than you aren't cut out for failure.