In the dishwasher, fork tines, spoon bowls, & knife blades - up or down?
Definitely load all silverware facing down. That way when you go to unload them, your not grabbing the part u eat with by your hands. Unless you can honestly say you wash your hands right before you unload every time :-). Coming from a germ freak
I personally load mine with spoons and fork tines up that seems to get them the cleanest to me. I load knives down though for safety reasons. Im sure everyone does it differently though.
Load the tunes and spoon face down. But do not put a lot of spoons in one area. They can get stuck together and then nothing is clean.
Knives always go down, so you or a child won't reach and cut themselves.
Forks and spoons up everything else down
It depends on the location of your jets and the shape of your basket. In my LG I have to place them down as they slip through the bottom of the basket and block the jet from spinning below.