Choose a good stock of paper. Even if you only want to print one page of ads, the paper is still important. Is it possible that you want paper, rugged and durable? If you are going to keep your custom design flyers on windshields, more important to use a solid paper so that if it rain, your flyers will not be easily torn. Ask your printer what type of paper best suited for your leaflet. Even if you have to invest on good paper, investment is at the end, when customers and sales start coming.