I've done a complete switch re: laundry. I switched from dryer sheets to felted balls and rolled up balls of tin foil. I switched from fabric softener (DH is very fussy about his "softy-ness"!) to distilled vinegar. My results: vinegar works just as well as fabric softener. Dryer balls with a few drops of essential oils put on them per load (I let DH pick) does the job nicely in terms of leaving the clothes un-bunched-up and smelling nicely. Neither felted balls alone nor when accompanied by tin foil balls does anything about static cling. However, putting the clothes on the "less dry" dryer setting seems to help a bit. And yes, plastic clothes (acrylic, nylon, etc.) produce far more static for me, too.