I use a coffee grinder for bud that is too sticky to be cut up with scissors..i don't recommend the coffee grinder for dry bud...it will make it super powder, and make your smoke crappy. You know the kind of weed I mean, the super sticky stuff that you try to cut, and you end up cutting like all of it just to get one joint...that stuff is where a grinder can save your bud.
Again tho, don't use one on weed which is already dry...it will turn into powder making it hard to roll a blunt or joint.
Hope that helps. I got mine for 5 bucks at walmart. does the trick perfectly:thumbsup: