Store it at the store.

Yup.
Let the store store it.
They have way more room than you do,
far more sophisticated inventory control and plenty of staff to manage it.

When the need arises, go to the store and buy the item you need.
No point in spending your money to buy and store things you aren’t using.

If you buy multiples, you need to create storage spaces for them.
If you buy things ‘just in case’, invisible Justin Case is using your home
to store his things.
If it’s ‘on sale’ but you don’t need or use it, you didn’t save money: You spent
money unnecessarily.

Let the store be the store and let your house be home.