I'd like to get back in the habit of whipping up a smoothie for breakfast. My problem is, I've changed my hours (earlier) at work and typically eat once I get there. I would have to prep the smoothie about an hour before it could be consumed. My experience tells me that once a smoothie starts to warm up, the texture gets funky and it's just not pleasant to eat. Anyone have any tried and true tricks for taking smoothies to go?