Usually people tend to use dryer sheets while drying the clothes in the washing machine. These sheets soak up the extra moisture and keep the clothes from building up static electricity and clinging to each other. However being made of paper, they tend to leave lots of leftover on the clothes. Those leftovers are very hard to get off. But we have a trick for you that will solve this problem of yours. All you have to do is put some balls made from aluminum foil in the washing machine. All you have to do is take an aluminum foil and roll it into a ball of 2-3 cm in diameter and make 3-4 such balls and throw them in the dryer along with wet clothes and run the dryer. The aluminum will prevent static electricity to be formed and will keep the clothes separated. You can keep using same balls for this purpose until they suffer wear and tear.