Yeah AB direct are expensive on postage.
Next time they do their amazing sale I will link it on here....
They do much of their popular stuff at 50% off or more but only once or twice a year.
If you do a bigger order the postage shouldn't move much and I'd highly recommend:
Purple Rain (Iron X essentially, but way cheaper)
Jaffa (citrus cleaner and dressing in one, brilliant for wheel arches and engine bays - apply, agitate, rinse, dry off for protected finish)
Banana Gloss Shampoo - cheap and very good