Reduce all closets by 1/2, off-season items packed, same for toys, books and personal products. Closets, cabinets and storage should look like there is plenty of space. I tell my clients all closets need to look like a closet ad. Donate, sell or toss items seldom used. Rent a pod style storage unit while home is on the market, it can then be moved to new location. Boxes can be gotten from the moving co. you are going to use.
Simplify, de-clutter, & de-personalize.