Good: The Deutsches Museum was on the reserved list of the sights I wanted to cover in Munich, but I decided to go for it anyway (not because I had extra time) and am glad I did so. It is a massive science centre, with very exhaustive collections. Three things to highlight are the coal mine (you walk through 700m of a mock-up mine in the basement), the very interactive and educational nanotechnology exhibit, and the actual old German U1 Submarine (not a model).
Not-so-good: Although I covered the top three in Munich today (Deutsches Museum, Munich Residenz, Pinakothek Museums), I was only able to finish about a third of each. Lots of things remaining to do should I find myself in Munich again.
Noteworthy food/drink: The Ullis Bierkutscherschnitzel, which is a typical Bavarian pork escalope in a crisp Obatzter coat (savoury cheese spread) fried in melted butter. Delicious!