Tesco has a brilliant 3 for 2 offer on Toys at the moment, and as part of it you can pick up the kids toy Advent Calendars as well. It includes advents from Lego, Toot Toot and Hot Wheels, and this is the best offer around by a mile right now.
Some are already out if stock as the 3 for 2 started on Friday morning, but there's still lots to choose from.
The offer is only on toys sold by Tesco themselves, so if your chosen one goes out of stock and a 'partner seller' also sells it then the 3 for 2 will not work.
The Tesco 3 for 2 on Toys is both in stores and online until Monday 31st and is subject to availability. Click and collect is free, or home dleivery costs £3.