[mezzode]

My problem with shower thoughts is often I have too many and it's a struggle to hold on to them all until the end of the shower so I can actually write them down

[kylek]

Start bringing a whiteboard marker with you

[TeMPOraL]

Or a waterproof notebook (with an attached waterproof pencil). They worked really well for me; I sketched a few public talks in the shower this way.