If you have brand-name or designer duds in good condition, your best bet is probably to take those items to a local consignment shop. Depending on the shop’s policy, you might be paid either up front or when an item sells.
How much you get also depends on the store. In addition, you might make more if you accept a store credit instead of cash for your items.
If nothing else, turn in your old clothes at a local retailer with a recycling program and receive a discount in return. We detail these programs in “10 Retailers That Will Pay You to Recycle Your Old Stuff.”