I think everyone hates the postcards that are stuffed into magazines. Fallout (the kind that are loose rather than being attached in some way) is the worst, but makes for easy de-boning - you just shake the magazine by its spine and you get most of them.
Attached cards are much more of an annoyance since even when you rip them out, it’s hard to get the stub and so it still acts as a bookmark for whatever page it’s on.
So how to you handle it?