I like a notebook and pen, especially for doodling and writing poetic prose or whatever comes to mind. Scribbles, crossings-out, word play all come easily on paper.
In the middle of editing a poem this little thought appeared, all by itself, unrelated in content to the main body of words:
How to live this life
In a seasoned quiet
Without the sound
Of constant conversation
And this lovely illustration turned up for Tigre le Dvou by Agata Kawa