Blisters are brutal for runners, but a new study has found an incredibly simple way to deal with them — and it’s cheap, too.

All you need to do is apply surgical paper tape to areas that often get blisters before starting an exercise, according to a Stanford University Medical Center statement.

The findings are based on a study of 128 runners who ran 155 miles to test the tape. Scientists applied a single layer before the race to areas of the body that often get blisters, and then they monitored their journey over seven days.

A total of 98 of the runners didn’t get blisters in blister-prone areas when the tape was applied. And 81 people got blisters when they weren’t taped.

So perhaps it’s time to forget all the expensive powders, lubricants, and adhesive pads and just go with the surgical tape next time you go for a long run.

“What I kept hearing was, ‘Doctor, I’d be doing so well, if only for my feet,'” Grant Lipman, MD, an emergency medicine physician and clinical associate professor of emergency medicine, said in the statement. “Their feet were getting decimated.”

Unfortunately, Lipman said there’s little evidence to suggest that all the blister prevention methods out there today do much to prevent blisters, so he decided to look deeper into the issue.

“People have been doing studies on blister prevention for 30 or 40 years and never found anything easy that works,” Lipman said. “I wanted to look at this critically.

“It’s kind of a ridiculously cheap, easy method of blister prevention,” he added. “You can get it anywhere. A little roll coasts about 69 cents, and that should last a year or two.”