I was in Tesco today and they were putting out the sun lotion section. I think because it's technically not the summer period, but it was all really cheap especially compared to last summer!
I bought 150ml Loreal Solar Expertise Sun lotion, factor 25 for £2.78 (and it was labelled at £3.75) This stuff is usually £12-15 from June! BARGAINOUS!
There's loads of others too, Nivea, Tesco Solait, Loreal, Ambre Solaire etc.
I think it's only instore, as I can't find it online anywhere.
Go go goooo, stock up now, no excuses for seeing any lobsters this year.