Dealing with a sticky mess like gum on the side of your outdoor trash bin is frustrating, but it's totally fixable with a few simple methods. First, try the freeze-and-scrape technique. Hold a bag of ice or an ice pack directly on the gum for a few minutes until it hardens and becomes brittle. Then, use a blunt tool like a butter knife or an old credit card to gently scrape it off. The gum should flake away without smearing.
For any remaining sticky residue, white vinegar is a great natural solution. Soak a cloth in undiluted white vinegar and press it onto the area for 10-15 minutes to break down the adhesive. Then, scrub with a stiff-bristled brush or a scouring pad. For tougher, older gum or other sticky substances, a commercial adhesive remover like Goo Gone works wonders. Always apply it according to the label instructions in a well-ventilated area and wear gloves.
After removing the substance, wash the entire area with warm soapy water or a mixture of baking soda and water to eliminate any final traces and lingering odors. Rinse thoroughly with a hose. To prevent future stickiness, consider applying a light coat of cooking spray or furniture polish to the bin's exterior; this creates a barrier that makes clean-up much easier next time.