What are some household chores people should do more often?

and don't forget those extra air handler things like if you have a HRV. i swear the previous owners of mine never cleaned it and the OEM filters basically disintegrated when i did it the first time after moving in. luckily all i had to do to replace them was cutting down to size those cheap-o washable filters from the hardware store, good enough to keep the large chunks out.