eBay has the Champion Authentic Men's Cotton Shorts with Pockets (yes, pockets!!) for $11.27 - 20% off with coupon PLUS20 (Ends 7/6) = $9 with free shipping. Available in select sizes from S to XXL.
Amazon has the 6-Pack Hanes Men's Comfortblend Max Cushion White Low Cut Socks (Size 6-12) for $7.00 with free shipping for Prime members or on $25+. Temporarily out of stock but still you can purchase it.
Has excellent Amazon Reviews.
Amazon has the Champion Men’s Classic Jersey Muscle Shirt (select colors/sizes) for $11.33 with free shipping on $25+ or with Prime. List price: $20. Available in select bsizes from S to XXL. Has excellent Amazon Reviews.