Not very often...we are in the process of painting all the rooms in our house now (we bought it a little over two years ago). Once that's done we're good for a while. We're pretty picky about it looking nice though. If it gets marks on it that can't be cleaned or something like that, we'd repaint. I fix any imperfections as soon as I see them, clean off any marks as soon as they show up etc
We do very neutral colors. We don't tend to repaint very often. We change up rooms with different furnishings when we want a change.
we've only ever painted our houses when we first moved in. we bought our house a year ago and painted almost every room before we moved in. we just had to repaint the kids rooms because we are having a baby and had the switch the boys and girls rooms around so the 2 boys can have the bigger bedroom, which our daughter was in before. haven't been anywhere long enough to repaint yet!
On average, every 3 to 5 years. That's about as long as paint looks good in my house, and I have tried every brand of paint over the last several years. The ones that are $50 a gallon don't hold up that much better than the cheaper stuff, imo.
I was just thinking that I need to repaint the fireplace, but if I do that, then I need to repaint the living room . . . and it goes on and on.
Painting is my absolute least favorite thing to do. We just moved into our house that we bought completely gutted, so we had to paint every wall/ceiling. I hated every minute, but it saved us TONS of money. We like colors, but they aren't BOLD colors (IMO), so they'll stay that way for as long as we like them. When DS wants to paint his when he's older, that's his job. lol.
ETA: we have 11 different colors in our house..lol. I figured, now or never!