5 pairs of EnChroma glasses
I own 5 pairs of EnChroma glasses. I started with the original lenses many years ago. They were an absolute game changer. Over the last few years I've purchased updated outdoor models and several pairs of indoor models. Recently I've added the indoor safety glasses version for work. They've been huge upgrade for working in a manufacturing environment. After years of wearing these, I can now look at a color without wearing these, and know what the color should look like. One of the best investments I've made.