I'm going to tag onto this post as its kind of relevant to my query.

First of all I'm a British passport holder, so we CANNOT add extra pages to our passports, therefore that is not an option.

Here's my situation. Like many people, may passport is quickly getting filled up with these full page sticky visas, especially from China.

I have noticed that these china visas are easy to peel off. My plan would be when my existing passport nearly runs out of space I will apply for a new passport (in the UK can hold two passports). When ever I travel to China I will use my new passport, but if I got to other countries I would use my old passport (with the Chinese visa stickers removed).

I presume this is probably a legal no no, but any other thoughts?