I am standing in a twelve square meter room, staring at a pile of bedding that has nowhere to go. The sofa takes up half the floor, the guest air mattress lives permanently under the desk, and my bank account says zero for interior design. This is the real starting point for budget interior design, not some Pinterest board with expensive minimalism. You need to solve the actual problems of your home without borrowing money. The biggest issue in small apartments is always the same: where do you put things when people sleep over, and how do you store the stuff they need to sleep with? A smart approach does not mean sacrificing comfort. It means choosing pieces that work double duty, and it starts with the most used item in your living space.

Your sofa is not just for sitting. It is your bed, your guest room, and your storage closet all in one. If you buy a cheap, useless couch that folds out into a wobbly metal frame, you will hate every night you spend on it.