I take my phone everywhere with me, usually on my hip in a holster of some type. The headphone jack on the Dinc represents a substantial port of entry for dirt and moisture. I know I had an LG flip phone years ago that make with a rubber plug to prevent such substances from entering. I am hoping that someone here has a solution for the Dinc, and hopefully available at say, Lowes, instead of ordering a $0.10 piece of rubber off the internets. It doesn't have to be a "headphone jack plug" per se, but something that will work just the same?