That's a big question. Many things in life are inspirational... people, places, art, books, movies etc. As a textile designer, I love to go through magazines. I'm looking for color, trends and how designers are styling homes.
Once I was watching an episode of "Mad Men" and Don Draper was going through a magazine tearing out ads... I'm always going through magazines tearing out! I end up with stacks of these tear sheets. I have found it useful to assemble these ideas back into journals. Keeping a journal of the pictures that inspired me was an idea that was stressed to me by my design professor.
Again, I ask... what inspires you?
Above: Flipping through a magazine for inspiration!