I took yesterday off on purpose, but then I didn't get much sleep last night, so I'll probably be taking today off as well. Tomorrow should be good, though.
Anyway, this is an interesting article from the Wall Street Journal about entrepreneurs and the pitfalls they run into starting a new business. It's definitely applicable to new writers: Don't assume you know what your sales are going to be, don't hesitate to get outside help, learn about the industry (that's something I'll need to get back into when I get further along with this novel), etc. Good stuff.