Hi Waterlilly!
The only thing I'd add is to also read the ingredients lists on the food label.
Since the FDA is not very fussy about carb count accuracy, some food labels can be confusing.
For this reason, if I see a label that is a bit unclear, I'll read the ingredients list.
If any of the first three ingredients is high carb (e.g wheat, rice, etc.), I won't buy it.
I've found that products with confusing carb counts tend to have more carbs than they claim.
This is where the hidden carb counter comes in handy.
Like Doug, I've not seen that hidden carb counter version until today.
This is the one I've used for almost 2 years and have had good luck with it.
http://www.lowcarb.ca/low-carb-tools/hidden_carbs.htmlIts calculations are very close to the FDA food listings.
http://ndb.nal.usda.gov/ndb/foods/listOther than those confusing labels we sometimes encounter, FTS is very simple and easy to follow.