When I was in high school and probably late primary school, my father would take me out every weekend to a shopping centre, and I would read the books at the bookstores there (yeah, I'm morally bankrupt when it comes to reading books without paying for them). Unfortunately, this became a less frequent occurrence when I started uni, as my father's working hours changed and I didn't go out as much. I think it's a good idea to read frequently (not just novels and books, but also things such as essays and newspaper columns) because it fosters a good habit of concentration. Also, it develops skill in extracting meaning from paragraphs and blocks of text, which I think is a really important skill in the current Information Age. And if you're anything like me, there's a lot of fun in reading a fiction book and trying to imagine/voice all the characters and their actions and emotions.
I clicked on the 'every few months' option. The two most recent books I read were "The Picture of Dorian Gray" by Oscar Wilde, and "The Turn of the Screw" by Henry James. Both of those I started reading at bookstores, before finishing them at home via Project Gutenberg. There are a number of books I would like to read; most of those are ones I started reading but never finished, including Artemis Fowl - The Last Guardian, Oblivion, Lord of the Flies, The Happiest Refugee, and the last two books in 'The Alchemist' series by Michael Scott.