I think about it constantly. But then at the end of the day, after work, or at the end of a long week, I feel so exhausted and the thought of actually doing something seems so impossible. I have to really psyche myself up to embark on even the smallest of missions. What most people might do during a lunch break is something I plan a day in advance. Spontaneity isn't exactly one of my personality traits.
I always think, "There's no time for that today. I'll do it tomorrow." But of course, tomorrow is always tomorrow.