Don’t shop hungry. If you’re shopping for food, it’ll make you buy more. If you’re shopping for anything else, it’ll make you hurry. Also avoid shopping depressed. Buying stuff you don’t need won’t make you feel better, but if you’re not careful you’ll do it anyway.
If you're at least 62 years old, you can score a $10 lifetime pass to America's federal parks and recreational lands. But act quickly because fees are about to jump.