I just bought thorn resistant tubes because I'm getting sick of having to pump up every 3 days and changing tubes on the road. I also switched to presta valves (with schrader adapter) because schrader has not been so kind to me lately. I'm pretty sure there's nothing sharp in my tire. But the tires keep leaking anyway.
Are there ways to help prevent flats? like putting grease between tire and tube to try to minimize friction?