BATTERIES
If you’re not using rechargeable batteries, know that the Costco brand batteries are comparable to name-brand batteries when it comes to lasting power, plus they are often on sale. Just remember to dispose of them properly.
PAPER TOWELS
If you have a lot of messy projects, stock up on paper towels at Costco. The Kirkland brand (the Costco store brand) will hold up well to spills.