Furutech AC Receptacles

If you’re going to plug something into an outlet, with the intent of having the outlet carry current for two to three hundred hours, make it something that will remain, "ON" for two to three hundred hours. Fridges and coolers are only, "ON" long enough(each hour) to maintain a certain temp. If they’re well sealed and/or not often opened/closed, that may only be ten to twenty percent of the time.

assuming arguendo that a freakin' power outlet needs to "broken in"...

the duty cycle will not make any difference

lak - Oh! I think you are suggesting that running a lamp might not be enough current to do the job?

And here's a general question: If my PS Audio P10 is plugged in, but without the components running, will the P10 draw enough current through the Furutech outlets by itself?

Refrigerators and Chest Freezers are still the best home option for burning in receptacles. Has much more to do with the surge when the compressor kicks in, which will very often exceed 15 amps for a very short period of time. This will get you much better results than continuous operation of an appliance that might draw 5 amps continuously. 

2 weeks on each half of the receptacle should get you pretty good results. 

Something like the Audiodharma Cable Cooker will be even better; if you have a dealer that has one it is a no brainer to pay a few extra bucks to have them burned in before shipping.