This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to create storage around staircases
Upgrade to stair drawers.
Turn individual steps into hidden caches by replacing your staircase's basic paneling with oversized slide-out drawers. Stair drawers are perfect for when you want to get everyday items out of the way but still keep them close at hand.

(1). Put your stair drawer in place with toilet paper rolls, cardboard flaps, and carpet extras, or check with your local hardware store. Rent a dozen broom-style storage cabinet.
(2). Ceiling and stair window trim will still keep your stairs looking great and clean when you're ready to start making new additions and create new ones. Wood chair risers are great when you're ready to lift a heavier person into one little step above the stairs.
(3). Find drawers near your home to fit your partner into your life. On your desk, place hardware racks at the bottom that hold the tops together.
(4). Use your stair drawers to stash things like shoes, sporting equipment, pet supplies and household tools. Stair drawers have gained popularity as a creative storage solution, and can be installed in homes of almost any size.
The answer is:
(4).