Nice idea from FX Coudert on Twitter today:

Here's mine:

periodic table

Fairly typical for organic synthesis types, I would imagine. There are a few big misses in the d-block, and I'm a bit surprised that I never had cause to use any scandium-based Lewis acids, or anything with an SbF6 counterion, but 45 is not a bad haul.

Really impressive would be significant incursions into the f-block or the transactinides.