What veggie juices are you doing? There are definitely some that are tastier, like carrot, cucumber, sweet peppers, celery... Experiment and find combinations you like and enjoy! You DEFINITELY don't want to drink too much fruit juices, which can cause Sugar imbalance and thus problems with yeast, which loves the sugar.
NO, you do not have to do a SWF (Salt-Water-Flush) every day! You DO need to do SOME kind of colon cleansing routine each day you fast. This can be a strong cup of herbal lax tea PM/AM, OR lax tea PM/swf AM (not for the commute obviously!), OR substitute a plain water enema for any/all. The point is to keep your colon clear to help your body remove toxins in a timely fashion and avoid detox crises.
We will be joining you starting tomorrow--I will be doing my fourth ten day run in a series.