I love to cook with wine. Many recipes call for a small amount of wine, considerably smaller than a full bottle, and then I have to drink the rest.
If I want to remain in good enough condition to finish what I am cooking :-) I use one of the 4 packers of wine I stock for this very purpose. You can find wine products such as these in Merlot, White Merlot, Chardonnay (preferred for cooking with white wine) to name a few. They are a perfect size for those cooking with wine recipes.
For more helpful ideas, please visit Shannon at Rocks in My Dryer - http://rocksinmydryer.typepad.com/shannon/