Leftovers Anyone?

Recently, I became severely dissatisfied with my job, and made the difficult decision to quit with nothing else lined up.  And since I have an infant son, my husband and I decided I'd stick around the house and freelance for a while. 

Well, shortly after I quit came all the news about our crippled economy.  And also we did our taxes wrong a few years back and owe some money to our friends the IRS.  So, now I feel like a total dummy.  Now, before you give me any "what did you expect" flack, my husband and I are doing fine financially, we can afford to live on what he makes and a freelance gig from me now and again, we just can't life *quite* as comfortably as we did before.

Anyway, I've tightened a bunch of stuff in our budget, and one thing I'm doing is keeping and eating leftovers.  I've always kept them out of the guilt instilled in me as a child that other kids are starving out there somewhere, but I must confess I rarely ate them, even when I was dirt poor in college. 

I have several questions about leftovers for my fellow Shine gals:

What foods work best as leftovers?  I've noticed some foods work well (almost too well, tasting better than they did when freshly made) and some are complete duds.  What are your tried and true leftover goods?  What just does not work for you?

What are the best containers for storing leftovers?  Sometimes my admittedly cheap dishes from Ikea allow the fridge smell to soak into the food or just allow a staleness to creep in.  What particular brands/styles have you had luck with?

And how do you prevent the dishwasher crust from getting on your dishes?  Any certain brand of dishwasher detergent you're using?  Is that a total lost cause?