You know you have a 3-year old boy in the house (part deux)

when you know from experience that:
--Rubbing Alcohol will remove Sharpie & ball-point pen marks from a LCD monitor & a wood desk (3 times in the last year at least, including the ballpoint pen deal today).
--Fingernail polish remover combined with a solvent actually does a pretty good job of removing dark purple fingernail polish from carpet & walls.
--Taking out your window screens & standing on the frame bends them back into place quite satisfactorily.
--It's beneficial to have extra paint on hand for wall & trim touch-ups.