I really like consignment shops. I've gotten some fabulous mid-century modern furniture pieces for my house. The two dressers were made in the USA (stamped on the drawers); one was made here in Virginia. But buying perfectly good things from a consignment shop is a good way to go for alot of things.

Alot of my clothes are from a really wonderful consignment shop. High-end, high-quality, lightly used clothes. No one notices, and I get lots of compliments on my Dolce and Gabana pencil skirt ($20, looks like it had never been worn).

My bikes were made in New Mexico, Oregon, and Taiwan. None are from consignment shops, but all are from either the builder or a local bike shop.

Local things made in my area:
my kitchen cabinets
my concrete countertops
produce from the farmer's market
my homemade bread (the flour is from Virginia, but I have no idea where the yeast comes from)
Fralin Pickups (for guitars)
Some Ikea furniture products (they opened a factory in Danville, Virginia I heard)

Do what you can, don't sweat the rest.