For those who prefer to give a physical item/gift, a few retailers are selling the PlayStation plus cards at the current promotional price that's on PSN (£29.99).
After Quidco (8%), the price at Tesco Entertainment works out at around £27.57 which is a bit more off the price.
Also, the card won't be affected by the price change back up to £39.99 on the 20th of this month which is good for me as I'm getting a PS3 for my Birthday on the 25th.
Hopefully this will be useful for others who are thinking about Birthday or Christmas presents.
(Update: My Quidco has just tracked at £2.40).