I am actually the road warrior in our family. My husband and I decided a long time ago that we're a team, and whatever needs to be done to support our family and keep things going, we'll just jump in and do it.
I asked him, and he says the hardest thing for him is the night when our two little girls have ballet! He gets off work, rushes to get them from school, rushes home, gets them in their tights and leotards and then DOES THEIR HAIR (you would know how funny this is if you saw my husband - he is roughly the size of a grizzly bear and is a carpenter, so he has huge hands). Anyhow, then he has to go to ballet and sit there with all the moms who are there, and they talk about all the stuff moms talk about... it's like torture for him, poor guy. So if he could change one thing about our lives, I guess he would schedule the girls' ballet classes for a different day, LOL.
On a more practical note, we make an effort to do things like grocery shopping, making dinners ahead of time (actually I buy them from Dream Dinners), cleaning the house, doing laundry etc on the weekends when we are all at home.
But he has been so wonderfully supportive of me in my job, and when I am home I do my best to support him in whatever ways I can. I think his can-do attitude, and the fact that he does not complain when I call him from my hotel room, makes the whole thing work. It's hard to be away from home, especially when you have a wonderful spouse and adorable kids at home. It would make it unbearable if I called home and he acted mad or put out. I am really grateful that he has such a wonderful attitude.
I think you just have to go into it knowing that you two are partners in this, and even though there will be frustration on both of your parts from time to time, you are doing this for the well-being of your family.
And like I tell my husband, "How will you miss me if I won't go away?" ; )