The sale might be different in different markets, but where I live Safeway (I think they own Vons and about 3 other grocery chains as well) is having a buy one/get one sale on 6oz tubes of Got2B at $5.79.

Considering a tube lasts me 6 weeks, and my cleanup is just showering, I just bought 6 months worth of attachment supplies for 11 bucks. I might go back tomorrow and stock up on more.