You gotta take care of blocked (not connected with other blobs) corners/edges first, then find the ones that will make big reactions. Pick a color and focus on it. Try not to rotate other colors unless absolutely needed.
Ahaha. I needed one for a new mod, "Mod Manager". Kinda like my Mod Toggler on steroids. How: Something that's relevant to the mod. When: About now. Badly: Not at all. Bucks: Can't be bothered to pay for this, I just threw together something small and quick.