What's that saying? If at first you fail, try, try again? I took it to heart and went back to Walgreens yesterday after my defeat there last weekend. Actually, it had nothing to do with proverbial wisdom, but more the fact I had $5 worth of register rewards I would be stupid not to cash in. This time, things went much better. First, I discovered the Walgreens on 82nd and Holgate, which is my new go-to store. At first I was scared by the people outside, but once inside it was big, organized and stocked! Even better the girl running the register was awesome. She literally had her coupon collection…