"cooking foods in the same pot" news and stories

As much as I try to be environmentally friendly in my life, I haven't done it much in my cooking. I'm not talking about green bins and the like, but rather the pots I use and how I cook them. I imagine that part of this lack of piggybacking in my life is due to science paranoia -- which things can be joined together, and which can't? But a big part of it was the thought never occurring to me. That is, until I made the Fantastic Fish Pie.

If you read the recipe, you'll notice that Jamie Oliver gets the potatoes cooking, then throws the eggs right into the same pot to become hard-boiled, and then tops the whole thing with a steamer to steam the spinach. It took one pot instead of two or three, and only a fraction of the time and energy required to do them separately. It all turned out perfectly, and even my almost-too-old eggs were just wonderful. In fact, they were the first hard-boiled eggs in eons to shed their shells easily, without losing any of the delicious whites.

So I ask you: Do you piggyback any of your cooking? If so, please share your tips below!