Bad habits
a2tech: 1) Social Media sites (reddit, hacker news, slashdot, facebook)
2) Nail chewing
3) ExcercisingAnd no-I've never been able to overcome bad habits. My short attention span when it comes to learning has helped me though-since I'm quick on the uptake when I go from subject to subject it lets me suck up a lot of info. And nail chewing..I wish I could quit but unfortunately my fingers are always there and I end up chewing them when I'm concentrating.