How long are you usually gone? How do you handle childcare while you are away? What are the best parts? The worst?

I will be traveling for work 3-4 times over the next two months (likely 2-3 nights away each time) and I am trying to make a game plan for my absence. DH is a great dad, but he works long hours, so me being away is going to take some adjustment. I'd love to hear how you do it.