In my experience working for your average corporation or government entity involves normal (and often flexible) hours, and can be as demanding or undemanding as

In my experience working for your average corporation or government entity involves normal (and often flexible) hours, and can be as demanding or undemanding as you like. Throw in benefits and it's not the worst way to go. It does entail taxing the same muscles you'd like to use for your own projects, but at a multiple of what you'd expect to be paid in the other fields mentioned. (And as has been said before, you could always "pay yourself first" by doing your own work before clocking in.)