Just been to my local Boots store (Kingswood, Hull) and they had various sun creams with a £4 clearance sticker on them. There was also a half price banner, and they are going through at £2 each.
I managed to get the following:
Soltan Kids SPF 50 Spray 400ML
Soltan Kids SPF 30 Spray 400ML
Garnier Ambre Solaire Light and Silky Mist SPF 10 150ml
Soltan Once Lotion SPF 40 250ML
Soltan Light Mist SPF 50 150ML
Soltan Once SPF 30 150ML
Garnier Ambre Solaire Sheer Protect Face SPF 15 75ML
There was many others available, including various Banana Boat.
At the advantage card kiosk there was also a voucher for double points when spending over £10 on Soltan, and another for 200 points when spending £20 but I guess these are account specific. I was able to use both.
Not sure if this is a local deal only.