Recent years have also seen the rise of the one-day sale wine website. These include the likes of Wineday.co.nz, grabonebottle.co.nz, 1-daycellar.co.nz and LastDrinks.co.nz, where buyers have 24 hours in which to purchase a daily deal.
Cleanskins are another product of the recent oversupply, but can be something of a vinous Russian roulette as the label gives no indication of who's behind the wine.
Another thrifty way to shop for wine is to buy seasonally.
With Christmas fast approaching, wine stores and supermarkets will soon be bursting at the seams with attractive wine deals, making it a great time to stock up and save money.
Wine bills when dining out can be a drain on finances, with mark-ups from 100 to 300 per cent and more. Pennies can be pinched if you make for an establishment that allows you to bring your own bottle for a modest corkage charge.
Some establishments that don't advertise this openly can still be sweet-talked into letting you consume your own bottle on the premises, especially if it's a special wine.
Pouring leftover wine down the sink is a terrible waste and there are a number of ways to preserve or reuse it. Resealing and storing a bottle in the fridge - regardless of its colour - is the simplest way to prolong its life for up to five days. Lower temperatures slow chemical reactions and inhibit the production of vinegar-forming acetic bacteria.
There are also gizmos that can lengthen the life of an open wine, such as vacuum pumps that remove the wine-destroying oxygen from the bottle, or canisters of gases such as argon, that keep it out by depositing a layer heavier than air across the wine's surface.
When wines get to the point where they're too tired to drink, many of us relegate it to cooking. Old oxidised wine isn't going to improve many dishes, so if you want to stop it going downhill, freeze it in small batches and defrost as required.
Freezing is not appropriate for wine to drink, but is fine in food.
And if you generate a lot of wine waste, you can always start up a wine vinegar culture.
At least with the amount of decent wine available to the savvy thrifty shopper, vinegar is not going to be what you're buying in the first place.
BARGAIN BUYS
ONLINE BARGAIN
Southern Eclipse Marlborough Sauvignon Blanc 2010 $10.21
Online retailers offer particularly sharp deals, including this classy sauvignon made by respected winemaker Michelle Richardson. It displays notes of blackcurrant leaf, zesty lime and oregano with some wild yeast ferment adding texture and complexity. (Available here.)
SOUTH AMERICAN SPECIAL
Michel Torino Coleccion Calchaquie Valley Malbec 2010 $11.99
Warm climates that make ripening a good crop of grapes easy, combined with low labour costs, mean wines from a country such as Argentina are often great value for money. Made from the country's flagship grape, this malbec has bundles of brooding and rich dark berry fruit laced with spice. This is another smart online deal.
FIRST RATE SECOND
Durvillea Marlborough Pinot Noir 2009 $19.99
As New Zealand started to balance demand with supply, many wineries began producing second labels below their main range in price. In general the good names are responsible for some great second labels, such as Astrolabe's Durvillea range, which includes this amazingly elegant sub-$20 pinot with a fresh and silky palate of cherry and plum fruit, spice and a hint of game. (From Caro's, Auckland Liquor Kings.)