Last January I put every lens except one in a drawer. For twelve months I shot everything on a single 35 mm lens.
What happened
I stopped deciding what lens to use and started deciding where to stand. I moved closer. I learned exactly what would fit in the frame before I lifted the camera.
What I missed
Very little. A longer lens for the occasional distant detail, and that is all.
Try it
A month is enough to feel the difference. Pick the lens you use most, and leave the rest at home.