Multiply your store bought sweet potatoes - place 1 sweet potatoes in a bucket of moist soil. As slips (shouts) appear, pull out place them six at a time into 20 gallon buckets. Wait 4 months, dump bucket, get 3 to 4 gallons of organic homegrown sweet potatoes per bucket. FULL growing details @ http://fivegallonideas.com/growing-sweet-potatoes/
Drip irrigation- works great! Especially during a long drought- less water waste. The only thing that kept my plants going, and once the plants get growing they hide the bottles. Quick and easy way to fertilize too!