[nickbarone]

I generally think of this strategy as "engineer the situation instead of yourself", but then I often times find a way around the trick, end up with an unintended consequence, or am in a non-engineered situation.

Have no cookies at home? End up eating all the cookies at friend's house, event, etc, where I can't make there be no cookies.

Unproductive websites? End up replacing the "mental reboot" process with some other task.

Far away phone? Tolerance to the ring goes up so that I just don't care.

That all said, engineering the situation can be really effective, it just has to fit in your "natural rhythm" - When I start browsing, I always start with the 8 sites on my Chrome new tab page, so if I change those, I change how I browse.