Storing knives: wood block or magnetic stripe?
I prefer the block. I've used the strip before, but if it was knocked accidentally when bustling about the kitchen, it caused a rain of sharp metal death. It was also possible to get the blade of the knife being pulled off under another and cause an extra knife to come shooting off the strip.

These could probably be overcome by being less of a clutz or getting a better magnetic strip rack, but I've transitioned to something like this, which you can make at home for about $10. Works great. No need to worry about sizes of knives to holes, and doesn't let the blades rub against anything metal.