Sun visor to clip over dash mounted sat nav. This is for 3.5 inch units. Also available for 4.3 inch units for £2.90 (was £11.49)
Quidco 4.5% instore with registered card or 3% delivered or collected.
Both types come with free delivery.
Registering your bank/credit card with Quidco and then using that card instore will result in a 7.8% cashback (probably ex VAT) until Friday 10th June.