Help with finding Doctor/River fics

Because I swore I bookmarked them, but apparently didn’t and now can’t find them again. I’ve tried hundreds of different search term combinations in Google etc., but no luck.

1) The Doctor gives River a special gift: the original Tardis key.  He takes back the copy he gave her for himself.

2) I think this is part of a fic where he goes to celebrate their anniversary and ends up mixing up which one with another version of himself.  So while he aimed for seventh and the other Doctor was supposed to be going for a different anniversary, they mess up and go to the wrong ones, then try straightening it out.  All as Amy keeps phoning and blasting him for the text she got from River that he hadn’t shown up.

So they might be two different fics or the same.

3) River gets a tattoo down the center of her back that taps into the Time Vortex in her DNA.  When the Doctor touches a certain spot, it brings that spot in Time to his mind. Like the 18th century.  This isn’t leiascully’s wonderful fics where young River get a tattoo on each shoulder in Gallefreyan.

Thanks!