<p>thermo1:</p>
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Would the ice pack last all day though? I'm looking for something that'll last about 14hrs.
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<p>If you have an insulated lunch bag, an ice pack should stay frozen or cold for a good long time. I don't know if it would last 14 hours - that depends on the lunch bag, the ice pack, and the outside temperature. You'll have to try it for yourself.</p>
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What do you recommend from the supermarket?
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<p>Well, I recommend rice, beans, pasta, and things that are on sale.</p>
<p>More specifically, choose complex carbohydrates. Brown rice is filling, and so is whole-grain pasta. Oatmeal makes a quick, easy, and filling breakfast - much more so than your typical breakfast cereal like Cheerios. If you're going to eat bread, choose a whole-grain loaf that feels dense and heavy in your hand - there's no point in paying for over-yeasted, air-filled bread. (In my experience, I've had to go to a local bakery to get this kind of quality.) I suppose you could also make your own bread, though I don't know how to do that.</p>
<p>Beans aren't carbs, but they'll provide you with protein (again, filling) and fiber, which is good for you. If I'm feeling hungry and lazy, I can open a can of black beans, pour half into a bowl, season with whatever's on hand, and heat in the microwave. It's tasty and quick.</p>
<p>Learn to pay attention to what goes on in your local grocery store. Check the weekly circular for deals. For example, I'm personally not a huge fan of oatmeal, so I eat cereal in the mornings. I've learned that pretty much every week, my local supermarket has some kind of cereal on sale. So instead of paying more for cereal, I just buy a box or two whenever I see something on sale that I like. I think so far this year I've avoided paying full price on cereal except for two occasions.</p>