With just a couple of days left until we ring in 2013, time is running out to get a cool calendar for your wall. There are tons and tons of options out there, but if you're looking for something stylish and timeless, I'd consider Massimo Vignelli's Perpetual Wall Calendar. First introduced in 1980, this classic (and my all-time favorite) calendar can be used month after month, year after year while being a super graphic piece or art for your home office.