Oh, oh, oh, Sarah - go with me!! Really!! I have spent all the $$ I should, so I can help you spend yours, and I'm great at treasure hunting and fetching sizes
And, I'm always game for a trip to the Rack!
My advice is simple - never go on the weekends unles its within the opening hour. Otherwise you'll stand in line for a dressing room and never want a second go-round - even if you need it. . .
Always make sure you are at your best: no needing a restroom, no being thirsty, etc.
If you are thinking of certain labels or departments, ask where they've recently put them so you spend your energy on the right racks.
I agree about trying on everything you can OVER a tank top, so you can eliminate clear losers right away and in better lighting than the dressing rooms.
Always use a shopping cart - to hold all those possibilities.
If you need a break, but aren't quite done, ask the front to hold your selections - go take a break, and come back when you're refreshed.