Just the once here.
I drink at least 1 can of coke a day and loves me sweets and chocolates. But for whatever reason the ol pegs stay in a very good condition.
I usually brush before leaving, but if the girlfriend is around, I brush right after meals. So, brushing is a function of how many times I leave my place during the day plus how many meals I eat when the girlfriend is around.
jk (I've never really understood that stereotype) I brush mine about 3 times, I have a mobile toothbrush set which is handy if I've been out a lot longer than planned, which happens often.
Around as often as I deem necessary, so 2-4 times a day. I also floss, but not daily. I do it at least every 2-3 days, and always do it if the food I eat will definitely leave something behind, such as steak.
Two to three times a day. My parents have thousands of $$ in my teeth from braces, cavities, whitening, retention, etc. Gah. I've gotta keep em perfect.