I thoroughly enjoyed your post! Think I'll try your 'skip cleaning my house one' tomorrow on my husband. Hope he falls for it~
I am a relative newbie too, with only 7 lockers under my belt, but I consider myself a pretty quick study in the 6+ months I've been doing this. Didn't bid on a unit until about my 8th time attending. Didn't win a unit until about 3 months into it.
Best advice I can give to anybody starting out is to sit back and watch for your first couple times out. It is not like they show on television. There is far more to it than bidding, buying and selling.
I can't stress enough how much work this business is. Cleaning out a large, full locker is a MAJOR chore. Having a place to process and store items is HUGE. Having a
realistic idea of resale value is extremely important.
Crowds here in Tucson have not changed much over the course of my time doing this. Last week we were out Mon, Tues, Wed in pouring rain. Didn't affect crowds much. Fewer lookie lous, but all the regulars were out in force. Weekdays I've found draw more of a crowd than weekends, although I've only attended one weekend auction, so.....
You'll learn so much tomorrow. And every time thereafter. My motto on life is "It's a slow day if I only learn one new thing".......couldn't be more true when it comes to storage auctions. Keep your eyes and ears open and your mouth shut.....well unless of course you're bidding~

Good luck~