She doesn’t just like to bake bread, she likes to deal with yeast starters and give them to friends. Molly loved getting them and took over her last batch after she died to cultivate and give out.
She was thisclose to proposing to John after the botched proposals with Sherlock’s return, because she wanted to marry John so badly since she loved him.
Her favourite song to bounce around with when she was happy (especially after she had Rosie) was “Happy” by Pharell Williams, having heard it a lot as she loves the Despicable Me movies.
She’s an alto but when she was younger could sing as a second soprano (a smoking habit when she was young killed her throat when it came to her range).
Mary is a caffeine addict. She has trouble sleeping and generally needs coffee first thing in the morning after a rough night’s sleep.
Her first memory is falling from a treehouse, breaking her arm, and then not telling her parents for a full day and just swallowing down the pain.
She was surprised Sherlock forgave her. She is so used to having the people she hurts hate her forever that when he forgave her by coming by after John moved out and making sure she was okay, she broke down into tears and hugged him for twenty minutes.
She’s a better shot than Sebastian Moran. They’ve shot against each other and know she’s the better shot.
At one point before she met John she started studying for a pilot’s license.
Sherlock was not the only one to get a DVD; Molly got one that told her everything she hadn’t already known and how much she appreciated her friendship, and enclosed were discs for Rosie for various milestones in her life because she wasn’t sure John would actually show them to their daughter or toss them out of grief.