That’s a very broad topic, but thankfully, I have a whole website that can help - Greenify-Me.com! I recommend checking out my 2 Steps to Zero Waste page. It’ll help you get started. My best tip is to use up whatever it is you have on hand before purchasing new (example: using a plastic sponge until you can replace it with a wooden pot scrubber). If you’re in the market for new things, definitely check out my zero waste recommendations page. I talk about all my favorite products from the kitchen to farmers market supplies.
Generally speaking, these blog posts will help you get your feet wet too:
Hope this helps you! I’m thinking about creating a zero waste beginners course at some point…just need to know if people would be interested first haha. 🙂