It all seems to be based on need. I'm a bit sanguine so I loose a few of those things now and then. Most of the housing I inspect is newer so bootlegs are less of a concern. When the older stock moves, like recently, its still a no brainer. Two prong gets replaced with three but the ground lug has nothing attached. KISS I keep one or two in the bag without a ground blade. I still want to know the two slot outlets function. I typically have a half dozen or so in the bag and more in the car. I'll load up all the outlets in the kitchen or baths at once and then test the GFCI function. Much quicker process. That's also why I wind up loosing a few. If things don't add up I whip out a multimeter and crunch the info. I do believe I'll steal the 12" whip idea for the floor plugs.