Pictures or it didn't happen!
As far as flat heads, i use them when it originally had them or i dont have enough Phillips to replace all. I don't like to mix n match.
I had a guy at work mention how he organised hardware bits that I thought was nice. He basically had about 20 large clear glass jars (like miracle whip) with the screw on lids. The lids being screwed(mounted)to the bottom of the cupboards in his shop area. Haven't tried it myself but always seemed like a great idea.
I not only have to do mine but my dad's as well a good 50 years of bits.