Checking all my backup files after the external drives had been in storage for about five months and the long sea voyage.
I did bring one drive home in hand baggage which was fine, two others packed separately from my computer (PC) along with two 1TB hard drives which hold a complete ghost image of everything on both my laptop & PC. not taking any chances with lost boxes.
A lot easier with my negatives; a good thing because I have rather a lot and all filed (not very logically 😉  ) in ring binders & archival storage sheets.