[Fey]

Ah, I've been an on-again-off-again nail biter since I was very, very young. In my case it's a nervous habit that I can't seem to stop. I've gotten better over the years with a couple different tactics.

1) Paint your nails
~this helped me for a while since it was a paint to have to redo the polish if I bit them. It also tastes pretty vile.

2) Chew gum
~often times if there's something already in my mouth I wouldn't go after my nails again. Also, if it's not a nerves thing, but an oral thing this'll fill that gap.

3) Get an abusive friend.
~my best friend and roommate have standing orders to smack my hands if I start chewing on my nails. After the fifth time I just can't even think about it around them...it stings!

However, the best thing you can do is pinpoint WHY you're biting them and work on getting that removed. Mine was due to nerves, mostly at home, growing up. Now that I don't live with my parents I don't have that need. When I'm in a particularly stressful time or place I make sure to sit on my hands, or hold something in them so I'm not tempted to snack on my nails again. It won't always work, but it makes a biiiiiig difference.