I want to do my moral bit but it seems that a lot of things are being boycotted of late and you can't boycott everyone!!
People I know boycott Nestle, Bodyshop, Maybelline, Garneir, L'oreal etc. The full list is here
Then I know other people boycotting Google, Arcadia, Boots, Barclays, Vodafone, Starbucks and Amazon for tax avoidance.
Then there's the brands that aren't signed up to the ETI. Plus wooden items, cotton items, chocolate, coffee, tea, sugar, fruit and veg that aren't Fairtrade.