Do what I do wait for it until you’ve backup and don’t upgrade until .2 comes out! Plus 32 bit apps don’t Run anymore. Also make sure your main apps are updated for the new Mac OS, it usually takes time for developers to update for new version!
Depends if I’m traveling by car, boat or overseas! One thing I can say as an American I say the roaming fees will kill your wallet! So I now buy phones in foreign countries anymore with pay phones that don’t break the bank!