I highly recommend throwing a 3-outlet splitter in your travel bag, since then it turns from "all the outlets are in use" to asking someone "mind if I unplug you for a sec so I can share the outlet".



About 2/3 of my travel is now on WN, and most of the WN airports are decently friendly, with at least some of the "lounge chair" seating, and the occasional "stand-up laptop bar" with outlets.