Today's exciting activity

I had my 2nd radiation treatment yesterday and it sucked. Therefore, today's activities are limited. A friend stopped by with dinner (Thanks, Chica) and stayed for a while to chat and I learned how to use the self-clean feature on my oven. This is somewhat embarrassing to admit because we've lived in this house for 4 years and I'm just now getting around to cleaning the oven. It isn't like we don't use it. I have to remember to do it overnight the next time. How often should one clean one's oven? Presumably it gets dirty from regular use so cleaning it only after Thanksgiving seems like a bad idea. Should I clean it once a month? Once every six months?