Generally I cannot stand going to a mall or a large store on a Saturday, especially during Holiday seasons. Best to go between 10AM and 1PM before all the 'shopping zombies' come out in force.
Personally, I can't understand why people go to the mall and spend hours shopping. When I go there, I have an agenda. Get the stuff that I'm there for, compare prices between stores, and get the f--k out as quickly as possible, with a minimum of delay. Which is why I'll only venture out to a mall on a Saturday only if it's a dire emergency. Besides, Saturday Mall traffic is even worse than commuter traffic.
Then again, there's the local SuperWallmart. I find that the best time to go shopping there is really late at night, when they're stocking shelves.
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When There's No There to get to, I'm so There!