the garage and shop I must have 5 or 6 grease guns laying around. It's handy when you run one out of grease, just grab another.I have a luck n lube connector for my grease gun but rarely use it because there's a few spots where it can't fit on my tractor. Not wanting to switch back and forth it's sat mostly unused. I actually forgot I had it. I now have a second hose for my Milwaukee cordless grease gun so I was thinking that I could put a hydraulic disconnect on the grease gun so I could switch back and forth easily.