To keep some passport pages blank, some travelers are placing sticky notes on certain pages, writing a polite note along the lines of "please stamp elsewhere; saving this space for a visa." ...

Citing security concerns, the agency stopped issuing the extra pages on Dec. 31. Instead, it will let future passport applicants order a passport with either the normal 28 pages or a hefty 52 pages.

If you’re an avid traveler, there’s nothing quite like the feeling of seeing your passport fill up with stamps, turning that once-blank travel document into a nostalgic little memory book. But ...

Err on the side of caution and add some pages if you’re at all uncertain. “The last thing you want to do is travel all the way there and find they’re not going to let you into the country ...