Always, ALWAYS carry a notebook and pen with you! You never know when inspiration might hit or you hear a funny comment that you might want to use later.
I at least always have my Windows phone with me which has OneNote built in; it's great because I have little tabs for Quotes or Ideas and quickly zap them on there (I email them from the phone too if my notes are substantial to avoid 'losing' them).
Nine times out of ten my ideas come when I am out and about or working so it always pays to be able to quickly jot them down before they're lost in the abyss of my head!
I at least always have my Windows phone with me which has OneNote built in; it's great because I have little tabs for Quotes or Ideas and quickly zap them on there (I email them from the phone too if my notes are substantial to avoid 'losing' them).
Nine times out of ten my ideas come when I am out and about or working so it always pays to be able to quickly jot them down before they're lost in the abyss of my head!