Confidential information: is just kept filed with all my other paperwork, on a shelf in the sitting room. I realise as the girls get older I will need to review all this - it's not just the adoption information, but various stuff, that soon will need to be kept somewhere more secure (for example, the diaries I wrote from age 12, which are all kept on a high shelf in the sitting room, which I do NOT want my kids reading!)
This thread is a reminder to me that I need to address this now, BEFORE it becomes an issue. I was horrified when I was sorting out some papers last year and found all the old information on the children we were potential links with, complete with photos and identifying information. Of course I should have destroyed them at the time, but we were so caught up with the busyness of adopting dd2 that I somehow forgot to. It would have been beyond awful if dd2 had found them.
Memory box: each of my kids has a large wooden box with their names on, gifts from a close friend. dd2 has in hers presents from birth family (a teddy, some clothes etc) and presents from fc family. There is a combination lock that only I have the number of - but I will share it with dd2 as soon as she is old enough to want it. Her box is in her room, and she will be able to access it whenever she wants.
I do have her later life letter and lifestory elsewhere, again with my papers. They're more easily accessible there when she asks to see them, which she does occasionally.