I go to church rummage sale , garage sales, Goodwill and Salvation Army stores. The last 2 have special Senior citizen prices on certain days, , and I purchase LOTS of 100% cotton men's plaid/checked/chambray shirts for very reasonable prices. Some are 2x,3x and they have lots of fabric that is great for boy of any age. Also, I have a tub of blue jeans that I have cut the usable parts out and they are usable, as well. They sell or are left over at rummage sales... and sometimes they just give them away...In fact, I have about 60 pair of jeans that I need to get rid of-will never get them all used, but were too good a bargain to pass up.