I'm like a mini-Tabris.
I have all my miles invested in Alaska (partnered with BA, Delta, Aeromexico, Korean Air etc) because it's by far the best domestic airline (IMO).
So I have their top tier mileage plan (mostly from partnered International flights) and that gets you a ton of benefits - free upgrades, free entertainment tablets, cocktails, etc. It's a bit stingy with its lounge for some reason, but I can upgrade anyone traveling with me, get free bonus miles and loads of other benefits. And again, it's just a great, pleasant airline. In fact without Alaska I wouldn't be best friends with Russel Wilson, Duff McKagin and Tom Skerrit etc. (sat next to them on a flight = best friends).
I also signed up for Pre and Global Entry, which means easy security, keep shoes on, keep laptop in bag etc, and easy international arrivals - straight to a kiosk, grab a receipt, skip the entire line. Anyone can do this for like, fifty bucks. I recommend it.
I get annoyed on short flights - an hour flight requires about three hours of effing about at the start and end of the flight.
I DO enjoy international long distance IF I'm in business class (you ALWAYS get to use the lounge on these flights) - get in my flatbed pod, figure out which movies/Flight of the Conchords episodes to watch, and which passable meal to order. HINT: If you're flying to Japan, Korea, etc - ALWAYS order the Japanese, Korean meal - they tend to be far better quality.
This is where I watch all the movies I couldn't be arsed to go to the theater for, but didn't want to wait for on-demand release. You know, like, Mission Impossible, Ant Man, a Seth Rogen comedy, and so on.
Here I can also get uninterrupted work done, catch up on document reading, answer emails and so on.
I always check seatguru.com to find out what the best seats are (they explain extra legroom, noisy bathrooms, weird window alignment and so on).
This week I'm going on a fairly long flight on a 787 Dreamliner, never been on one, always wanted to. Excited to experience the quiet, comfort, LED lighting and so on. Never been on a double decker airbus either. And I miss the upstairs on BA's 747 (no longer flies out of Seattle regularly) because the window seats have huge storage bins at lap height, which makes effing around with your headphones, computers, etc.
But my number one pet peeve - (US) Airport limos, closely followed by airport cabs. Even with a stern talking to before you get in the car, they will in about 50% of cases, try to claim their credit card reader is broken. Twice I've walked away completely from fares because the driver was so committed to his lie (New York both times).
I use Uber whenever possible, here and abroad.