I've tried not to think about work on my vacation, but I don't think I have anything to do when I get back until someone gives me something. So I could go in early on Monday and do some writing at work, see how that is.
I wonder if it would help my motivation to not read any other short stories while I'm writing mine. Of course, I think it was reading one of them that actually got me to start writing this one, so it can't be all bad. I just need to write this story, and then later I can worry about what gets my writing routine going or not.
Yes, I think that's probably the key, much as I hate the idea: routine.