These adhesive decals stick to any flat surface and are even PVC-free! Why opt for green energy if you can't remind yourself and your guests about it every time you turn on the light? I'm serious.

Grist relies on the support of generous readers like you. Donate today to keep our climate news free. All donations matched!

h/t CleanTechnica

Grist thanks its sponsors. Become one.

To support our nonprofit environmental journalism, please consider disabling your ad-blocker to allow ads on Grist. Here's How