We have brought coffee, cereal, peanut butter, jelly, vacuum packed tuna (Don't ask why - I don't know), splenda, pasta that sort of stuff and have never been asked about or charged anything. I think customs pretty much knows if it is for personal use or not. This way we also have room for the stuff we bring back like...rum! I think it is very worth the effort to bring dry goods if you plan on eating in at all.
This is great to know. While on vacation we always enjoy the local food, but eating out 3 meals a day for 7 days is not my idea of fun. I love to cook and we will be traveling with 6 couples, so saving money on food is an easy fix with bringing some in. Bad part is now the airlines are charging for each piece of checked luggage...ugh
That should be ok since I plan on packing my toothbrush, flip flops and sarong for clothes ... lol