Blood on Clothes: Pour hydrogen peroxide on blood and rinse with cold water. If some blood remains, repeat.
Burn / Scorch Marks: If the fabric is washable, brush it gently with a soft brush or dry sponge to remove loose carbon particles. Then, wash the fabric with regular detergent and color-safe bleach. This will permanently weaken the fabric even more than the scorch has, but the scorch may no longer be noticeable.
Burnt Stuff on Iron: Rub iron with aluminum foil to remove burnt on starch, etc.
Have a good day & hugs to all my friends!