One-shot. McGonagall finally got to awaken the statues in the Battle of Hogwarts, but she wanted to do it for a long time. Given all the times she missed her chance, it was no wonder she was so eager when the time came.
Hermione grows up as a maths whiz instead of a bookworm and tests into Arithmancy in her first year. With the help of her friends and Professor Vector, she puts her superhuman spellcrafting skills to good use in the fight against Voldemort. Years 1-4. Sequel posted.
One shot. Harry's Valentine's Day date with Cho goes a little better.
One-shot. After losing the war, being held prisoner by the Death Eaters, seeing her friends' lives ruined, and being sold to the highest bidder, Hermione finally embraces her Slytherin side and finds a way to take control of her life again.
After the war, Hermione is haunted by the friends she lost, so she comes up with an audacious plan to fix it, starting way back with Harry's parents. Now, all she has to do is get herself taken seriously in 1981, and then find a way to get her old life back when she's done.
Lily's sacrifice did a lot more for Harry than protect him from Voldemort. It protected him from the worst of his relatives' abuse, too. But when Dumbledore tells him the whole story, he decides he's had enough and takes control of his life. Set in sixth year.
One-shot. Harry suspects the Second Task will involve hostages, but he still can't find a way to breathe underwater. In his desperation, what other options might he devise?
One-shot. After the Battle of Hogwarts, Harry and Hermione learn that there was an important bit of magical lore they didn't know about. And they are not happy.
One-shot. Ollivander searches for a way out while locked in the Malfoys' cellar and finds and opportunity in an unlikely source.