I had this problem, although I liked to keep it wet so that it dried curly. The best thing I found was just to regulate my showering hours. I always showered after dinner, to give it time to dry before bed. Washing in the morning doesn't work, but I'd go out with it wet if I had to (or blowdry).

Really I don't think there is a lot you can do otherwise save not tying it up (but I know that's horrible!), or towelling it dry as much as possible.

I used to cut my own hair - maybe you could try that? (Actually, I lied a bit. I was too afraid to cut my own hair so I had my mum and friend do it for me - they are so good!)