Another thing i do is replace things before the are broken or as you can fell they are on the way out (things like cranks). Changing from square taper to isis has probably been the best move ever! Is such a more solid feeling and it gives you more confidence. But i'm always changing everything for the better... wheels, brakes, pedals, tyres, tubes, ss kits, cogs, forks, grips, BB's, stems.....