We have featured this Adventure Tent and Tunnel before and it was very popular, and the good news is that it's back in stock. The Works sell this set for £9.99, but with the code SAVE20 you can get it for £7.99 which is a cracking price for a play tent combo like this.
That code will also give you free delivery when you spend over £10, so rather than fork out for the £2.99 it makes much more sense to add a couple of kids books or activity packs to take it up to the £10. Otherwise, if you live near a store you can just get the £7.99 tent and opt for the free click and collect.
It's a lightweight tent that takes a couple of minutes to put up with the tubes and ties, and the tunnel just pops up. You can use them together or separately, and the both fold down flat again for easy storage. They're small enough to be able to use them inside as a den, and big enough for two kids and a dog if the picture is accurate. ;)
One to get while it's back in stock and pop in the garden when the sun comes back out. Remember to use the SAVE20 code to get the £7.99 price.