Looked like a good price for this (the Febreze and Bio versions are also available for £3.75 each)
- Asda: £4
- Tesco: £7.50
- Morrisons: £7.25
- Sainsburys: £6.50
Probably the kind of thing where the saving isn't enough to be worth ordering it because of the delivery cost, but if you happen to live near a Waitrose and can pop in it sounds like a good deal.