We'll be flying on a consolidated charter from DFW to PVR in late July for a son's wedding. Both the bride and I will use our passports for ID, but are curious about what other measures we should take or avoid. I hope to convince her that carry-on will provide adequate clothing for the week (I succeeded in getting her to KOA for TWO weeks in c/o only), but what other suggestions do y'all have regarding:

security on either end?
jewelry & cameras?
exchanging cash here vs. there?
other tidbits we should oughta know?

All responses appreciated, especially from the TSA folk!