I almost always wear the same shirt on my super loops, unless it was unlucky the time before.
I'm also superstitious about stopping at stores that were not in my planned route, I feel like if I happen upon a new store or throw in an additional unplanned store, there is always something that really makes extra stop worth making.
A few of my stops are cash only. I seemed go to those stores with no cash in my pocket and found a bunch of decent stuff. The one or two times when I was actually prepared, I found nothing. So now I always go without cash, then put the items behind the counter to head the the ATM.
I even used to never use a shopping cart, riding on the unpreparedness thing again. That was until I developed the thrifters elbow last year from holding dozens of tweeds for hours a day.