When it comes to the bedrooms, they can have a lot of things in them like a bed, a dresser, a night stand, a TV, etc. Therefore a TV stand may also be in the room if the dresser is not used for the TV. These things can fill a room up fairly easily. Closets can be used seasonally. In the summertime, consider using the closet for summer clothes and placing any winter clothes in totes on the closet floor or in totes under the bed. They actually make totes specifically for that purpose.
Kitchens tend to collect a lot of various things, even items that have nothing to do with the kitchen. They simply just end up there. You could help control that by using small drawers to keep tiny parts and pieces and small tools like screwdrivers, scissors, utility knives, tape measures, rulers, etc. In addition, you can install some wall shelving to place those spices, collectibles, or even the pictures on the fridge or table. Aside from that, if you stock up on soda or juices when on sale, you can place them in the garage instead of the kitchen floor. If you have a lot of shoes in your household and many do not get used often; you can utilize a shoe rack or some totes to keep them together and reduce clutter. Lastly, if you are one of many people that have tiny pieces and parts in cups; consider using a small storage container like nails and screws can have to save some space. They will slide right into a drawer verses sitting out somewhere.