Knoxville has several thrift store choices, and a few of my favorite are:
Habitat for Humanity at 2209 North Central, 521-4909
Plenty of furniture and items for the home such as ovens, light fixtures, doors, and even used paint.
Knoxville Area Rescue Ministries, KARM at 3935 Western, 521-7766, 115 Sherlake (off Clinton Hwy), 690-0939, 4528 Chapman, 577-0404, and 3555 Emory, 947-1663.
This year they offered a 20% off coupon in Knox Co Schools coupon books. The coupon could be used once a month (two months remaining at this time). In addition to that, your receipt is good for 10% a future purchase. Their coupons are sometimes limited to clothing/shoes only, so be sure to check them.
Smart Cents at 5731 Western, 558-6187
Smart Cents currently lists a coupon in the Volunteer Coupon Book for 25% off your total purchase. Not only that, they advertise that they will honor all competitor's coupons!
And finally, my favorite:
Amvets Thrift Store at 4105 Holston, 524-8498
Amvets boasts the lowest prices day in/day out. Often, the store is too hot in the summer and too cold in the winter; the store has no bathrooms and clothing is not cutely organized by color. But, they do have a big, full store with everything from books, games, and curtains to sewing patterns, cloth, kitchen utensils, and tables. Children's clothing--from the hideous to The Gap--is $0.89 an item. They have great hours: open seven days a week and most days until 8 p.m. Several times a year, they'll have 50% off everything in the store sales (usually around holidays).
Currently, on the back of your Kroger receipt from Asheville Hwy will be a $5 off a $20 purchase coupon. (It is not good on the purchase of children's clothing, however.)