Here are some resources for you to consider if you would like to engage in zero waste practices:
How This Woman Compiled 8 Years of Trash into a Mason Jar (Plus Her Easy Waste-Reducing Tips)
Four Tips for Starting a Zero Waste Lifestyle
12 Cheap & Easy Tips for Reducing Your Waste – Sustainable Zero Waste Hacks
20 FREE zero waste swaps to save money & the planet! | low impact on a budget
20 ways to live a more waste-free life
P.S. Don’t get discouraged if you can’t apply some of these practices in your lifestyle. Some aren’t applicable to the Singapore locale. Some are not suited for your own circumstance. Focus on those that do and build from there.