Cat House Using Cardboard. This cat owner went all out. Cat cardboard scratcher house measures 22 x 18 x 21 inches and it is suitable for most cats.
The answer is you dont. Cut a 6 in 15 cm square in the side of the large storage container. You can even decorate the outside of the box with wrapping paper artwork or just leave it plain.
Take several boxes and make a cardboard cat house.
Make a bunch of them to house the feral cats that stop by looking for a warm corner in freezing weather. You can build your own from corrugated cardboard poster board or any other lightweight material but an existing box will be much sturdier. We all know cats love boxes. Probably much more than any other toy you could buy in a store.