10250 Versachem Dry Graphite Lube (L-300, 250-110 Qualco)

Disclaimer: I purchased this product at my local hardware store, NOT on Amazon. (It was actually cheaper there, I didn't have to wait for it to be delivered, and I supported a small business with my purchase! - win, win, win!)My housekeys were getting stuck in my front door lock, and becoming increasingly difficult to remove. A simple application of this graphite lube (a little poofy-poof into the lock) and even the newest, least worn key was sliding in and out so effortlessly several dozen "yo mama" jokes have already been written about my doorknob.Simple product. Easy to use. Great price. A bit messy, but nothing a paper towel can't handle. Just don't use this stuff in a wedding dress.