The grease g u n tunnelrat81 recommended is the one I use. In fact I have two of them, one of which is more tha 40 years old. Use of these g*ns keeps the grease clean, and -- they are very convenient.

I buy buy grease in a tub and fill the g**s being very careful to do so cleanly. I then seal the tub to keep its contents clean.

Never, never, ever just scoop grease out of an open tub of grease, or put any back once it's out.

Both my local bike shops leave open tubs of grease on their benches and use acid brushes to dig it out and smear it around where needed. Dirty business and destructive as hell!

Joe