Different ways to keep your stamps

What a creative idea!  (For long-term storage, it still might be a problem with the acid content in the notebook paper, but an intriguing short-term solution.)

Although these may not be high-value stamps, and although this is a novel way to show stamps, I would remove the stamps from these holders.  Not only does it make the album bulky, I think there's a long-term storage issue with the stamps themselves.  

It's my understanding that stamps need to breathe, and sealed in plastic wrap, they can't.  Even mounts like Showgard allow air in 2 sides.  If any of those stamps had the tiniest bit of moisture in them before they were sealed up, there could be problem with mold or mildew.

So, I would remove them.  (Plus it's no doubt hard to turn the pages, etc.)

Just my 2 cents' worth ...