Getting the blood out

Raising a house full of boys there was always blood on something.   Replacing clothes, etc. Can get expensive (you still have to feed those ever - hungry,  growing boys). 
Many may already know how to get blood out of material,  whether it is clothes or cloth upholstery, but I'm sure, many do not.  It is quite simple.

Pour peroxide on the spot.  I pour it in the cap so as to not waste. 
It will bubble up on the blood spot.
Dab off and repeat til the spot is gone.