Part podcast, part fitness app, Zombies, Run! is the only running plan I have ever stuck to. It's free, you don't have to run – you can walk if you want – and there are endless missions to try. The premise: You're a survivor of a zombie outbreak, and every step you take brings you closer to collecting supplies for your base. It's currently on Season 4, so there are plenty of plotlines to follow.
"But how can I do this at home?" you ask. All you need to do is move, so you could go up and down your stairs, run around the garden – or even walk up and down your street.
Download it here.