Being a wine-drinker of limited knowledge, I have a fairly crude but effective way of sourcing new wines. When I am in the supermarket, I keep an eye out for half-price bottles of a variety I like (usally Rioja, New World Sauvignon Blanc, or some kind of Shiraz/Merlot/Cabernet Sauvignon affair) that usually costs around £10. Experience has told me that this price range seems to match the (lack of) sophistication of my palate plus the lack of extravagance of my wallet. (I'm prepared to risk a fiver on untested wine but not much more!)
Occasionally, this tactic goes a bit wrong and I bring home something rather bland, or too sweet, destined for a risotto or casserole dish of some kind. Sometimes, though, it reaps welcome rewards. One of the latter is the Sauvignon Blanc from Glenridge Point. This is a crisp, zesty and fruity wine with all the new world features that I love from New Zealand Sauvignons. I will happily add it to my exisiting go-to Sauvignon Blanc from Marlborough: Oyster Bay and Villa Maria. If you are a fan of such things... head to Sainsburys whilst it's still on offer!