I've searched and read the forum about securing and backing up travel information, documents, etc.: credit card contacts, account passwords, sending yourself an email PDF attachment, putting a backup on a Cloud service, developing a substitution code for PINs, photocopying things to go in a money belt, leaving info with someone back home, making bogus contact entries on a cell phone, locking your mobile device, and so forth.
I plan to do several of these actions. However, in particular is there a recommended secure Android app that can serve as a “password locker”? I'd like to put account passwords and other information in the locker and have them easily available through a single master password while traveling. One thread mentioned Good Reader but I haven't investigated it.
Thanks.