Oh yes, WHERE are you finding Simple Green locally? I refuse to pay shipping charges. I've been unable to find a local source but that probably just means I've not been looping at the right store...
I just take the chain off and swoosh it in a bottle with chain cleaner. I like the White Lightening spray cleaner for this as it evaporates totally from the chain so no rinsing/water is required. SRAM power-links are reusable and it gets it cleaner quicker than the tool. It works for me, my LBS wrenches converted me to this method.