"I doubt many actually pull much more than a toaster anyway."
THAT's why I measured actual appliances.
1000W micro: Just over 15 amps (I rounded down).
2-slice toaster: 6 amps
A 20-amp circuit with only one receptacle needs a 20-amp pattern device. This is misleading, as a) a duplex receptacle counts as 'more than one,' and because 20-amp receptacles typically have T-shaped slots, that will accept 15-amp plugs.
You can't have good design when you have bad data.
