Tough on grime, tough on the causes of grime - that's what Clarke's motto should be. The dirt-busting cleaner sliced through the oil and grease, while the beads ground away the caked-on filth at the first attempt. It's a shame that this gel didn't come in a pump-action dispenser, but there's 4.5 litres of the stuff, which is fantastic value. We know ΂£17 seems a lot to shell out, yet compared to Swarfega Orange, it's 80p per 100ml cheaper. Our Best Buy cleaner.