Try your local (well stocked) office supply stores for postcard stock - it is 4 x 6 inches ( or try 4 x 6 unlined index cards) and the thickness is about right. If you need full 8 1/2 x 11 sheets for programs like QSLMaker, 110 lb paper sheets are available 73, Don W3FPR ----- Original Message ----- > What is an economical source of paper stock for printing one's own QSLs > on a desktop printer? >