Whether you’re a beauty novice or a confirmed fashionista, this topic is for consulting Mumsnetters on all things style-related. Plus, check out our Swears By page for the inside track on the next Mumsnet must-have.
For £20 or less I'd try Matalan, New Look, and H&M. Good luck with your interview and I hope you find something you feel comfy in. I recently bought myself some plain black trousers from Matalan for work which I think were about £16 and they're nice enough and very comfy.