I am a greatly disloyal grocery shopper, always prepared to prostitute herself commercially for a bargain, and due to being flooded with vouchers, I have chosen Ocado to receive my hard-earned £££ this week. You can't use all of them at once, I think, but they are all worth having.
VOU3254318 15% off if you book a delivery 18-19-20 January and spend over £75
VOU1037438 £15 off first delivery
VOU3269447 £15 off first delivery (expires 30 January)
Also new website with good features - they have copied the switch and save function on mysupermarket.com so it suggests cheaper options from other Ocado goods. I saved about a fiver. I also stocked up on special offers, such as Loyd Grossman pasta sauce, £2 for 2 and so on, as the offers seem quite reasonable at the moment. Prices comparing favourably with Tesco today.