I recently ran out of those expensive dryer sheets and fabric softener. It is winter; so, the the static electricity levels are high. I heard alot about dryer balls; but, I can never remember to buy them. Then I found an old tennis ball in the garage. It reminded me of an article I read about using tennis balls in the dryer instead of a dryer sheet. I had just finished a load of towels and this seemed like the perfect trial. It worked like a charm. The towels came out static free and fluffy. I think it even took less time than normal to dry. This was an unexpected bonus. I am going to try to remember to buy more tennis balls. I am thinking for heavy loads I may need to add a couple more.
Give it a try and let me know how it works for you.