I just got this switch. It sits right on my worktable, next to my palette. When I sit down to work for the day, I flip it to ON. When I need to take a break, or I am done working, I switch it OFF.
It is a wonderful focusing tool. That switch is ON and the machine is powered up, and it is time to work, 100%.
When it’s OFF, I’ve made the decision to quit for the day and there’s no nagging feeling I should still be working.