I realized I've been eating oranges wrong for years. I cut them into slices and eat them slice by slice. Which is fine, except that I'm wasting the zest. Zest is tasty, versatile, compact, and freezes well. So now, whenever I eat a navel orange I wash and zest it first:
The zest goes in a small container in the freezer, and is available for cooking and baking as needed. Probably my favorite thing to do with it right now is steep it in cream (~3-15g per cup, bring to near boil, leave for 20min, filter) and then use the cream for all sorts of things (truffles, pastry cream, etc). I've been meaning to try a cold infusion (24hr in the fridge) which ought to be a bit more true to the fruit.