a fridge thats got the inter-ma-web in it could be handy, IF...
all produce stored in it had RFID tags in, and it populated your online Tesco (UK supermarket that delivers) order as you remove stuff, then when your fridge is nearly asks you if you want to complete your order, then you just complete the checkout process as normal.
I'd think about getting one of those. But then again i HATE shopping, except for new gadgety things