OK. This is totally unscientific. But after waiting in line just to park my truck at the Fort Worths one-month old Traders Joes this Sunday, I asked around to see when the best time to shop (or park) is.
From what I gathered, weekday mornings between 8 to 10 a.m., and Sundays before noon are the times you can find open parking spots. Just be aware that on Sundays before noon you cant buy their famous "Two Buck Chuck," or other wines/beers.
Darn, I knew there had to be a catch