Let there be bright light!I wanted to be able to see what I was doing in the bathroom, which I consider to be an important consideration. A single incandescent bulb just wasn't cutting it. So I grabbed an automotive tail light replacement LED bulb (type 1156) and swapped it in for the original.
The result was a significant improvement that I'm very happy with. Unfortunately, I wasn't able to find the exact part I used on Walmart's website (this is not the first time this has happened, so apparently Walmart the store and Walmart the online sales are not operating from the same stock). However, anything 1156 compatible will work. This will be a metal base with two side bumps at the same depth (for locking it in place) and a single connection on the tip of the base. The one I purchased has 19 square led elements and was sold in a 2 pack with a button for testing it in the store (handy for estimating the brightness).