Investigator Passport Usage

Questions about how you use Investigator Passports in your game

I'm trying to get some feedback on how everyone uses their Investigator Passports at the table and what their preferences and priorities are. This will give me an idea of what direction to take with the passports moving forward.  (This references the Investigator Passport props currently available on DriveThruRPG.)
1.Do you print a character sheet (or other game material) on the inside of your passport to use during the game, or do you use the passport solely as a prop (with nothing on the other side of the paper)?
2.Would you rather keep the option to print a character sheet on the other side of the paper, or would you rather give up that option to have additional passport pages for visa stamps/stickers?
3.Understanding that double-sided printing creates some challenges (alignment will always be a little off, more room for user error forcing you to re-print), would you rather keep things as they are (simple, printed on one side) or print on both sides to gain some additional pages in your passport?
4.Do you use the form fields to fill out your passport, or do you print it blank and just hand write everything?
5.Would you like to see more emphasis placed on adding additional features (pages for visa stamps/stickers) or on adding more countries?