Tricia, um yeah, the swf can be fun to predict but what I think is worse is the lax tea and trying predict that during a workday. I usually give the swf up to 3 hours. What helps is when I drink about 16 oz of water about 30 min after doing the swf. It's like roto-rooter. So practice on the weekend.
Burroughs did talk about herbal teas but not during the cleanse. Only lax tea and "occassional" peppermint tea.