Don't put your fruit and vegetables in plastic bags. Just leave them loose or upcycle an old t-shirt and make your own reusable produce bags. If you can, opt for items that are package-free. Or, choose items packaged in cardboard or tin instead of soft plastic.
Think about plastic items you frequently buy and whether there is a way to avoid these. If you’re a fan of carbonated water, instead of purchasing it in single-use plastic bottles, consider getting a carbonator. It’s an investment but it will save you money in the long run.