DH has started working away through the week, it's not possible to come home as 4hrs drive each way and sometimes works nights. It's not permanent just as and when the work comes up so we go with it, by contrast he could be based locally for a couple of weeks working days so it's very unpredictable.
We have two DCs and I work four days per week, literally feel like I get home from work, tidy up/sort lunches, put DCs to bed and then go to bed myself, it's actually quite lonely when i've been used to him being around, it's a total change of routine for us. I'm also a bit of a whimp and don't like being alone at night so I think I need to grow a pair!
If your OH works away how long are they away for, how do your DCs cope with it and how do you manage things?