I ordered a few bottles of de-icer to get me through this winter. Last month they had 25% off, if i had waited I could have save a little more when I did a major service. I swapped our standard Champion spark plugs in favour of NGK'S, all 16 of them. They also do OAT concentrate and plenty of other stuff. The sale applies to service parts though and not tools but we only needed service bits. Also to qualify, you have to order online and can choose click and collect option.
They also do k&n oil filter wrench ended at £8, it's under the performance items.
I usually get my services bits from this place, it's convenient and reasonably priced. I even got my batteries from here, I like the click and collect facility.