Poll: Do you use apps to find bargains?

These days, there's an app for almost everything. How about bargain hunting? Do you use apps to seek out the best deals on merchandise you plan to purchase? Do you shop with smartphone in hand, checking prices at other retailers?

Let us know if you use apps to find bargains. Vote and leave a comment. (If you do use apps, let us know which ones have worked best for you.)  Results and a selection of comments will appear in next Sunday's business section.