Links to Black Friday apps
The Black Friday app, available for the Android and the iPhone, lets you browse through different stores, and even check out ads that have been leaked.
TGI Black Friday is a similar option. Along with letting you peak at leaked ads, you can also sign up for push notifications when new ones are posted.
Both let you add items to a virtual shopping list.
Once at the store, if you're unsure of the bargain you're getting compare prices by scanning the item's barcode with the Snaptell app.