Yeah, it's definitely tough. My day job involves writing and linguistics, so my brain is sometimes kinda fried when I come home. I try to have a couple hours of transition time between work and fiction writing -- sometimes I go for a run; I help my husband get dinner on the table; we eat and talk; I have some wine; we clean up the kitchen; we watch Jeopardy; and then I go out to walk our crazy dog. As soon as I start on the walk, my brain clicks into WIP mode and I start coming up with ideas for what I'm going to write when I get back. Usually I have a couple good lines or a scene of dialogue in mind when I return.
That's an ideal evening, though, when I'm able to walk the dog exactly at 8 PM and then come back and have the rest of the evening to write. I try to get in two hours of sustained writing time every day, but sometimes those two hours come at strange times. Last night I was up until almost 2 in the morning, and it looks like tonight will be almost the same. Sigh. Things come up. Family stuff, or trying to maintain some form of social life, or just the urge to watch a movie in the evening.
I make good use of my weekends, though. Weekend mornings in particular.
Also, my husband sets me deadlines for when I have to have certain chapters finished. I write well under pressure, so I tend to get a lot of good stuff finished just before a deadline. I recommend this -- get a family member or trusted friend to set a fire under you.
If you can grab a few minutes to write at work -- lunch break or coffee break or whatever -- that's really helpful, too. Actually, one of my best writing days in recent memory happened last Thursday. My officemate was out "sick" (read: hungover) and so I finished up my pressing things in the morning and took the entire afternoon to work on my novel. I don't generally endorse that, but I usually work like a madwoman, so I didn't feel one bit guilty about that afternoon. The mild illicitness of writing at work fueled me to write some really good stuff!
