35 Lifechanging Ways To Use Everyday Objects 1. Use a can opener to open sealed plastic packaging. 2. Add saline solution to refresh dried-out mascara. 7. Use a banana to fix a DVD. 11. Use nonstick spray on the inside of your votive holders. 12. Eat marshmallows to soothe a sore throat. 20. Use mayonnaise to erase water stains from wooden furniture. 32. Use Scotch tape or nail polish to relieve an insect bite. 35. Open a bottle of wine using your shoe.