Is there a good webapp that lets you track grocery items for your home? More specifically, I'm looking for inventory management and shopping list functionality.
Update: It seems like most of the answers simply use task-list webapps that people are treating as shopping lists. That's fine, and it's interesting to see what webapps people use to solve this issue, but I'm also looking for webapps that are specifically designed for grocery/inventory management. So, for example, when you "use up" an item in your inventory, and the count reaches 0, it will automatically add it to your shopping list. You should also be able to see a list of things you have on hand and such.