One thing I noticed this week: Poker chips are now routine in luggage. A year or so ago, it was a guarantee that your carryon would be flagged, you'd open it and show them the chips and case. Now, they're waved right through without a second glance.
Yes, there are certain vacations where I routinely bring poker chips.
The other thing I noticed is that Delta is intently monitoring the 50 pound limit, which is surprisingly easy to exceed with a suitcase full of suits and shoes.