The thing about this store is that it seems so out-of-place, sandwiched between the oh-so-hip Montrose bars/tat parlors/dildo-supply outlets and the posh River Oaks boutiques. But there it is: a freakin’ hardware store. Established in 1953, this maze-like mother is crammed floor-to-ceiling with tools, lawn supplies, paint, fertilizer, propane…and they…