Nice to find this tribe, whereever it may now be! We are a sugar-free family and have been that way for, hmm, since DS was born? To be full disclosure here, Iam the most likely offender in our house, however, and do have slightly-sugarized items now and then, mostly at the coffee shop. And after DD was born I made and drank loads of Chai with Sucanat, which technically is still sugar even though totally unrefined. In general, though, we are completely sugar-free as a matter of practice and I seriously think that white sugar (and white flour too) is a drug that should be banned. Not eating sugar has been one of the most important health decisions we as a family have made, I think.
We do occasionally use substitutes like brown rice syrup, molasses, and agave syrup if we must have something in a particular recipe....stevia powder is a staple in our house too. It is so cute to hear my son ask for soy milk (we get unsweetened) "with Steve in it". He has never had candy or refined sugar of any kind that I know of. People always comment on how sweet he is and well behaved (eh, hemm, in public, not at home I might add!) - perhaps there is an inverse relationship between sweetness of temperment and amount of sugar consumed?
I was struck, pre-babies, by the erratic behavior of a toddler who was allowed to eat indiscriminate amounts of chocolate and vowed that if I ever had children they would never eat that way. When I was pregnant with DS, though, I was blind to the whole sugar issue and ate horrid things like coke, gummy worms (!) and sweet tarts. I would never do that now! My mother is a complete sugar addict who exercises like mad and complains about her weight....
Anyway, I am so happy to see that there are others doing the no-sugar thing. Once you get used to it as a mind-set it is just a way of life and not hard at all, IMHO.