I've been doing a lot of work travel recently and I've got it down to a pretty good routine with several systems in place to help me. One of those systems is doubles of everything for my toiletry bag except glasses and contacts. Another is that I bring granola bars and almonds to eat for breakfast as that saves me a lot of time. I always book rooms with double beds so that I can use one to unpack my suitcase and spread it all out on the bed.
But the habit that offers me the greatest pleasure is putting on jeans and clogs (in the hotel or airport bathroom) for the ride home!