Front bearing install...

whats the problem with a little lint? these are roller bearings, not close tolerance engine bearings.
I have always just wiped out what I can with a an old rag. Never leaves visible lint, and I have never had to do the job a second time.
Besides, if you use the right grease, it has fibers in it which draw the grease through all the rotating surfaces. Just look at the stringy trail it leaves as you pull some out of the jar.