She taught me a love of travel.
She and my Dad met abroad, and when we were growing up, they sacrificed a lot to take us on holiday to interesting places every other year. Her (and Dad to be fair) encouragement to explore different cultures led me to my career, all the travel I've done and the courage to move to the other side of the world at 21.
She's not entirely sure it was such a good thing (for 6 years both DB and myself lived in a different country to her, with all her grandchildren)
She also didn't push me down a "gifted Saturday school" route as she was encouraged to when I was small. Instead she put loads of effort into activities and social events. It made me utterly miserable in my teens as I would have been happier with a book, but looking back, she judged my personality perfectly, as had I been allowed to retreat into myself as a teen I would have absolutely no social skills now, instead of just reall bad ones. 
She also protected me from my grandmother (her MIL) who favoured my brother and wasn't afraid to show it. I never realised how much until some of the stories started coming out as an adult (I knew she favoured him, but it was only when I started telling her about all the petty cruelties from GM that I realised that she knew and they were only the tip of the iceberg compared to the things she had hidden from me).
Oh, and later on, when I was having DD1 she was utterly supportive in all my choices re labour and breastfeeding despite never having given birth or breastfed herself (I'm adopted) and all the emotions that time must have caused her.
I do wish she hadn't been so obviously disappointed over the years at my lack of any sporting ability or inclination