A few miscellaneous travel trips:
1. Do not pack in haste just before leaving on a trip. For my recent trip to New York for a few days, I packed just before leaving. One of the items I packed was a pair of grey flannel trousers. When I got to New York and was putting them on for the evening, I discovered that I had packed a pair so old that it was six inches too small in the waist and impossible for me to wear. Fortunately the black jeans that I had worn on the train could suffice.
2. Do not pack a small container of pasta salad you bought in a grocery store. It may leak olive oil over other things, in my case, fortunately, just the outside of some plastic bottles of water that I had in the same grocery-store bag.
3. It is nice to remember razor blades, but, if forgotten, they can easily be bought in New York.