Make sure that if you choose to do the salt water flush, that you wake up an extra hour and a half before you usually do or you might just be late for work. Other than that, the only bathroom running you will be doing is because of your full bladder.
The other thing I can say is that if you go in with the attitude of "I am going to try" that is pretty much setting yourself up for the kind of failure where you can then say "well I really tried." If this is something that you want to truly do for yourself, then go in with the attitude of "I am choosing to complete this cleanse." There is a big difference between choosing to do something and simply trying.