One thing that we all get caught up in if we are thinking of moving to the Philippines is that everything is cheap! Well, it is not always true.
Two categories of items come to mind when I think of things that are expensive here.
First, any kind of foreign goods. If you like imported foods and such, any of the foods that you were used to in your home country, they are expensive to buy here, if they are available at all. Generally, you can expect to pay almost double for foreign goods compared to the prices you are used to paying. Even very simple things like a box of Kraft Macaroni and Cheese can cost about $2 or so.
The other thing that is very expensive here is electricity. I pay well over $200 per month for my electricity bill, and we conserve in every way we can think of. We run air conditioning in two bedrooms, but only a few hours at a time. On average, electricity here is about 18 to 20 US cents per Kilowatt hour. I remember paying less than 10 cents in the States, although I am sure prices have gone up in the last 6 years.
Another thing that I just thought of is any kind of tech products – computers, ipods, that kind of thing is significantly more here.
Yes, most things are much less expensive here as compared with first world prices, but keep in mind that some things are more. Overall, you will be able to live a better life here and for less money, though.