I have hair that is a couple of inches below the shoulder length. I keep it in a pony tail most of the time, because I go to the gym and/or run outside quite a bit, and it's just easier to keep tidy. In its natural state it devolves into cork screw curls, which some seem to think is "cute", but I find looks very hippie-unkempt for a work environment, especially since when the curls appear, I can't brush it as then it turns into a mass of fuzz. I only wash it twice per week and if I'm wearing it down, it gets blow dryed straight and then hot-rollered to tame the curls.
And colouring? HELL YES. I do not like the greys. Nope. Not at all.