Oh Beatrice

What hast thou been up to?

"Blood

This, for me, is the easiest stain to remove. Whether fresh or dried, I just pour hydrogen peroxide on the affected area, wipe the bubbles away and with it, the blood stains."

On the other hand she offers this which looks interesting and is just on plane with my level of sartorial involvement of late:

"Addendum:

Here's a strange way to remove stains that my Grandma taught me: She leaves the stained clothes out in the rain! Sometimes it works, sometimes it doesn't. All I know is that it gets some stains out without any effort from me. I thought I'd share that with you too!"