We have three sets for each bed, one Christmas, one winter, one summer. They're replaced whenever they need to be. The DCs bedrooms are Kallax-ed to within an inch of their lives so they've loads of storage space.
Our bedroom has wall-to-wall wardrobes and drawers so nothing is on show but perfume bottles on the dresser and books on bedside tables.
The lounge has a pretty large bookshelf and a huge dresser the DCs gaming stuff is stored in.
DH's office has one large bookshelf and a large filing cabinet. Everything is filed within a week of arrival and relegated to the loft after 12 months in the office. I'm militant about keeping stuff organised because DH's business means he's away often and I can't deal with papers everywhere.
The kitchen is organised because we store stuff we don't use often in the garage on racking.
I'm brutal about throwing stuff away (although I do have a box for each year of the DCs lives filled with their shite, which DH thinks is crazy - it's reports, photos, special pictures/paintings, school stuff they'll like to see as adults etc) and they're all in the loft, labelled. I also have a 'wow wall' in the kitchen with all the DCs certificates and fabulous stuff on so that it's not spread everywhere.
My only room that's not organised with military precision (expect for the DCs rooms because I don't want them to spend their lives hating me for my de-cluttering ways) is the spare room. At the minute the bed is covered in all of our winter stuff, shoes, scarves, gloves, ski stuff, a few other bags of goodness knows what and anything else in need of a quick home. It's like my very own Monica-cupboard - I'm totally organised except for that one room.