Fenwick’s Superior Awning & Gazebo Cleaner

Although this ‘trade secret’ is sold in Halfords, you’ll find it in the camping section! At less than £3 for 500ml, it’s a bargain – especially when cleaning ability is only just behind the likes of Autoglym and Meguiar’s. Plus, it’s straightforward to apply: spray on, leave for 30 seconds and then rinse off.