+1 on mail-ordering StarSan. It's not very expensive, and a bottle will last forever if used wisely. I only do one batch at a time, so I usually make a 5 gallon bucket when I make my starter, and that lasts me (covered) through bottling day. At this rate, I will need another bottle of StarSan in...three years?
Caveat: I'm a freak about sanitation; I won't let any un-sanitized substance or surface contact my wort.