Read. I hardly watched much tv in year's past. I would buy dozens of books at a time and work my way through them, all day every day. At the time I was ill and unable to work, so that was one of the reasons why I had so much spare time.
Now, I don't have as much spare time - and tv is convenient compared to books (sadly), but I do still manage to read on the go on my smartphone, be it articles, news, Buffy-Boards threads.
So yeah, reading, internet browsing and of course playing with my daughter and all the hijinks that come along with being a mother (long walks, days out, softplay, visits to the park).