Place the premeasured amount of grease in a large cheap/thin ziplock bag, and a thoroughly cleaned bearing, zip the bag shut, work the grease into the bearing from outside of the bag with your hands, remove newly greased bearing taking care to wipe excess grease off into the bag, reclose bag and using a straightedge or the edge of a table/bench work the remaining grease into a corner of the bag, snip a small piece of the bag corner off and squeeze the balance of the premeasured grease into the bearing cup! No lost grease, completely packed bearing and clean hands!