As James said: "Sit down"!
I find it really helps. You can stay at the eyepiece for 10-15 minutes. Avoid dark-adaption too. I keep the kitchen lights on and look up occasionally, otherwise the view is just too bright and 'bleached' out. Just getting comfy and relaxed means you can see more - not just with planets. But with the bright exterior planets (M, J & S), being able to sit and stare for a long while means you can catch the moments of good seeing. with an 8" dob, I've seen dark spots, barges, etc. not just bands.
Of course, if the seeing is rubbish, so will the view be. A big dob will have a lot of atmosphere to look through!