I recently bought a set of these little buggers just to see if they lived up to their promise of softening clothes and reducing each load's drying time. I haven't really noticed the difference in softness but it did however cut the drying time down by 20 minutes each load. Which is, on average, a whole hour of each day's laundry drying time. I don't really know what that translates into for our electric bill. But so far for my $3.99 purchase, I'm pretty impressed!