It's the weekend! Barring any freezing or ungodly weather conditions, go for a long walk today. A 30-minute brisk walk can burn up to 250 calories. If it's too cold outside, then hit up the mall and go for a fast-paced stroll. As for me, I'll be cruising up and down the streets of downtown Manhattan today. If you need some tunes for your walk, then check out our Top 7 Workout Songs for 2009 to get started.Every day throughout the month of January our 31 Days of Wellness series will provide an actionable tip aimed to get your 2010 off to a better, healthier, greener start.