I have a grease gun that I use for my paint shaker that I store in a Ziplock. None of my cars have Zerk fittings so I wonder what people do with grease guns as I wonder why Milwaukee, DeWalt and Makita sell cordless grease guns as I have no idea what anybody (except somebody that owns a John Deere tractor) would do with one.
Fabbed up the "all things dripping oil containment system". Funnels and Grease Guns on top, set Oil Filters and other things on the Collection Tray which drips into a Drum Funnel. Take the used Oil to a friend Service Station and he uses it in his Oil Burner.