i wash what i know i need plus a few more, just to be safe. i dont usually mind washing dishes, but somehow washing them with cold water just doesnt have the same relaxing affect on me that washing with hot water does.
i also see that no one has answered the dishwasher question yet, so i will attempt to repeat what i was told.
you may put dishes into the dishwasher as long as there is no light inside that goes on when you open it. also, if there is a light on the outside, you have to make sure that is off before you open it, otherwise opening it will cause the light to go off.
loading the dishwasher is another story. i was told that you can put things in, but you MAY NOT properly load them in, as this would be hachana (preparation). i just stack my stuff up and put it in however it fits.