Taiwan has numerous local and international chain stores, department stores, electronics stores, computer stores, malls and supermarkets big and small. In additional to the foreign stores are the local night markets which offer items ranging from food to video porn to pets.

Many large stores take credit cards and have reliable warranties on electronics and other goods, as well as refund policies good for up to 30 days as long as you keep the original packaging/receipts.

Many foreigners bring too much when they come over, but in reality you can find most anything you are looking for (from no-class to high-end) and usually at a deep discount compared to similar products overseas (plus there is no additional tax added on sales items, generally speaking, in Taiwan, because it is already figured into the price!)

Don't forget to bargain/haggle for the best price as prices aren't always set in stone (except in the dept. stores/malls.)