A few things on shakes.
1. Shakes are awesome. I have one almost every day for a snack.
2. I mix some kind of fruit (frozen bananas are always in there, plus maybe bluebs or strawbs or cantaloupe - YUM), egg whites in place of protein powder (the kind in the carton from Whole Foods - I go through WAY too many of these a week...I don't use protein powder b/c it has a ton of calories and I've never really found one I like, although Matt Fitzgerald suggests whey protein is best), some kind of veg (spinach, swiss chard, kale, cuc), Honest Tea unsweetened green tea, water, ice and BOOOM...best shake ever.
3. Here is a great little list for making your own best shake ever: http://www.precisionnutrition.com/super-shake-creation
4. Wonji Juice just opened up a little juice bar at the Whole Foods in Glover Park. I tried a Green Goddess yesterday - kale, parsley, cucs, broccoli, pear, pineapple & lemon. It was greenlish-ous. I am thinking about getting a juicer. Seems to be the thing to do these days.