Huh. I guess that packing light goes without saying.
The title of this thread initially made me think it was about going somewhere nearby for bungee-jumping, paragliding, or maybe guzzling a lot of Mountain Dew. But anything and anywhere for just part of a day via plane, then back home, is pretty extreme. I guess this how some of the people who own private jets, with hired pilots and maybe other staff, go about life.
An extreme Extreme itinerary would be flying to Berlin for breakfast, Ljubljana for lunch, Monaco for afternoon tea, Paris for dinner, Brussels for dessert, then home. Airport security for every flight in one day? That would be extreme.