I've definitely tried to cut way back on refined sugar (including "secret" sugars like corn syrup). If any of the sugars are listed in the first 5 ingredients, I don't eat it. Sugars that are naturally occurring such as in fruits and veggies are harder to avoid. But I try to eat ones that are lower on the glycemic index so they naturally have lower sugars.
Refined sugar really does a number on our bodies. Significant sugar intake on a daily basis really messes up insulin production (thus the epidemic of Type II Diabetes in this country), causes skin problems, and water retention. Plus the effects of it wear off so fast that you're hungry again much sooner than if you'd had something without a lot of sugar in it.