A bit of background information:
The obvious answer is 'Just buy a camera bag!', but that's where things get a little bit more complicated. Lately I started looking around for my first prime lens and while reading reviews for Canon's 50mm f1.4 I stumbled across comments like 'The autofocus stopped working, after I took it out of my camera bag'*. There seems to be some construction weakness that can make the autofocus rails break, when pressure is applied to the tube. There might be more examples, I'm not trying to bash this lens.
Equipment getting broken due high usage or clumsiness is a risk I can live with, but the thought of gear 'committing suicide' in a camera bag makes me cringe.
To cut a long story short:
How do you protect 'raw eggs' in your collection, when the padding of your camera bag just isn't enough?
* This is not a word by word translation.