Do you have an iPhone? Then stop what you're doing right now and download the Nirvino (my preferred online drinking community) wine ratings guide. With over one million wines listed by name, price, grape varietal, flavor profile, region, and producer, the wine application is an amazing resource to always have at your fingertips.

Not only does it provide food pairing suggestions, but there's also lots of fun lists to browse. Food Network's Aida Mollenkamp shares her favorite wines to drink while cooking, Sommelier Mark Bright rounded up his top bottles from Whole Foods, and yours truly has even created a list!

I headed to Safeway to pick out the best wines — all of which are under $20 — for hostess gifts. I've tasted and enjoyed these wines and would bring them to a party. Be it a birthday bash at Hog Island oyster farm, an intimate Thanksgiving dinner, or an upcoming holiday soirée, there's a bottle for every occasion. To check out my list, keep reading.