I believe the road to hell is paved with adverbs, and I will shout it from the rooftops. To put it another way, they're like dandelions. If you have one on your lawn, it looks pretty and unique. If you fail to root it out, however, you find five the next day…fifty the day after that…and then, my brothers and sisters, your lawn is totally, completely, and profligately covered with dandelions. By then you see them for the weeds they really are, but by then it's—GASP!!—too late. "I can be a good sport about adverbs, though. Yes I can. With one exception: dialogue attribution. I insist that you use the adverb in dialogue attribution only in the rarest and most special of occasions...and not even then, if you can avoid it. 

STEPHEN KING