Travel plans questions

About packing: can I bring music cds? How much wine is allowed? Should I bother with small dollars for tipping?What do you think about TSA pre check?

Funny you ask about music cd’s. I’m not sure but if you look at the customs regulations I think it still specifies 30 cd’s and it’s been that way forever
Many years ago- mid/late 80s, I came to Mexico to work on my music.
I came with one of those binders which contained about 100cd’s.
I had no idea of the regulation at that time.
I also came with one of those portable sound systems of that era- I think
It was the KLH 20.
As we were arriving into Puerto Vallarta I read the back of the customs form and noted for the first time the restriction of 30. And I wasn’t sure my portable sound system would be allowed without duty.
Anyway luckily I hit green and had a very musical stay in Yelapa until I got dengue at the very end.
Enjoy your music…and your wine…