Cheat gravity and install function grip shelf liners in your home. These clever liners have an anti-slip effect and will keep your items in place. The shelf liners are easy to cut to size with scissors and then just position them where you want a bit of extra grip. There is no glue involved so you can easily move them around and reuse them. They can be washed with your laundry at 40°C.
Check the images for colour guidance and choose between black, grey, sand and beige.