We have a Victorian house from 1892. Earlier this year we renovated the bathroom. We installed a high-tank toilet, and we're planning on changing the switches to retro push button switches.
I'm thinking I should replicate this sign and post it in the bathroom.
The light switch for the bathroom used to be outside the bathroom which confused everyone. Now everyone expects the switch to be outside so they don't know where to look for it. Maybe a sign would help.