Juicing when working-lunch and other question

I am going to do a juice fast for a week, just finished The Master Cleanse about a week ago.

Does juicing support you like the MC? I felt GREAT and know the maple syrup gave me energy.

Anyway, I know the juice needs to be fresh so what can I do when I go to work? My boyfriend are doing it at the same time and we only have 1 juicer...

thank you!

p.s. do you find juicing more or less potent in terms of detoxing?