[mehphp]

What you are describing doesn't sound like a typical "turning off work" situation. Startups, as you know, are a different animal.

Are you sure startups are what you want to be doing? Being all-consuming is kinda the nature of the beast...

[lr4444lr]

Seconding this. If the OP has the problem as he describes, he really needs to avoid his trigger, which is the startup work environment.