This week's show is all about saving. Jack Wallington is saving veg for the winter – who doesn't love being able to reach into the freezer or pantry for a quick taste of summer on a cold November day? RHS Water Scientist Janet Manning shares some expert tips on how to make the very best use of water and mulches in your garden, revealing some surprising facts along the way. And as ever our resident gardening guru Guy Barter is full of useful info and gardening tips too.