Have a small, adjustable wrench* also to to get the lockrings off the cones. Cone-wrench on flats of cones, adj. wrench on lockring. And I've never bothered to purchase a grease-gun or whatever. I just squeeze the grease from the tube, or gouge-up a finger of grease and work it in.

* Or a box-end if you have a set. Every mechanic should invest in a set of decent wrenches - Craftsman is good.