Depends what you're looking for from the green, dude.

I use it to dull my frustration at the world -a necessary thing - but I do find that I am sometimes not as productive as I need to be sometimes - not a good thing.
The age-old addage remains: Use the drug, don't let the drug use you!

I too am a 24/7 toker, but I don't rely on it to get me by (just as well, as I aint always got any recently).

If you feel that you need a break...take one - only you know what is best for you, in this respect.
But I agree with ~opiuser~...a day away aint enough, you gotta take at least a week off, if you wanna 'clear your head'