I'm about to start primary teacher training in September in a reception class. The problem is, I've been a Nanny for the last 4 year's and haven't set foot in a school since then. My usual work wardrobe consists of jeans, t-shirts and the like. I need a small-budget friendly teaching wardrobe, suitable for getting down on tiny chairs and the carpet with my pupils. I'm a size 18 and late 20s, and wouldn't wear heels at all. Help me wise MNers!