Make your own items instead of buying them.
I like to make my own laundry detergent and my own Goo-Gone, for starters.
I also like making Glade, Windex, and Soft Scrub.
In both cases, it’s way cheaper than buying the commercial version.
Hunt around for recipes – it’s amazing how many things you can make at home in just a few minutes that saves a ton of money compared to the commercial version.