http://www.amazon.com/gp/aw/d/B000W405SG/ref=aw_d_iv_hpc?is=l&qid=1338762925&sr=8-2
My wife trimmed my brows last month
I use a Wahl trimmer with the guard set on 3 once a week.
I do it like my barber does. Put a comb down into the eyebrow, trim what pokes through with scissors. I need glasses to do this freehand with scissors, but, the glasses get in the way.The advantage for me is with the comb methodis is that I can do it with a comb and scissors without glasses, and no danger of poking my eye or trimming off too much. Plus I do not need an assistant or SWMBO.
Cheers,