(image from Downshiftology) Save Time, Money and Set Backs with this Meal Planning System from under 2 Hours a Week.   When it comes to healthy eating, following a new eating plan or starting any new challenge, preparation is the key to success.     Those Girl Guides are onto something there.   In fact, one study published in the American Journal of Preventative Medicine suggests that spending time on preparing and cooking meals at home is linked with better dietary habits for the long term.   But if you love the convenience of prepackaged foods and restaurant meals, it might be hard to go cold turkey on your take-out routine.   Luckily, planning and preparing your meals ahead of time will make healthy choices a no-brainer. Instead of running to the deli for a cold cut calorie bomb, you’ll have a home cooked feast on hand that can be heated up faster than you can walk two blocks. (Leaving you with more time to squeeze in your daily training or walking !)   And hey, you’ll save money while you’re at it.   Plus, if you’re intimidated by cooking, there are tons of sneaky tricks that can help make assembling...