I try to save it for my reward meals just to keep my overall soda intake low. When I feel like having a soda outside of my RM it reminds me that I probably haven't had enough water so I chug a whole bunch of water and if I still want something to drink I'll have iced tea. I like Shwarzbein's method of cutting back on stimulants one by one. I was drinking way too much diet soda on other low carb plans.