Just reminded me I need to re-assemble my mini toiletries kit and start carrying it again. Even a straight-through flight is no guarantee, as I discovered on a flight from Minneapolis to Seattle... where I wound up staying overnight in a hotel in Billings because one of the plane's engines failed.
I usually also have a shirt ("boxed"), change of underwear and socks in my backpack, just in case. And in case it's worse than that, the mini-kit has a couple packets of Woolite...
I’m going to assemble a kit as well.
Socks, underwear, a tooth brush, etc.
I have all that stuff on hand, in my bag. When I come home from a trip, the first thing I do, before I ever put the luggage away (two pieces) is re-stock the toiletries and make sure I have a complete “outfit,” from the underwear out.
It just makes it SO much easier for last-minute trips.