i do no not want want the last thoughts of me being a cold corpse. I don't want an open casket or a funeral at my time.
I agree with this - my first look at a dead body was my grandmother's when I was 25. I had just walked in and did not notice the casket right beside me until I glanced down and saw her weak, feeble body. I was physically and mentally shocked for a second.
Make sure to die in a way they cannot prepare your body for viewing.
Also, make your wishes for cremation known.