A tip for the stamping: after you apply the ink to the stamp, wrap a tissue around your finger and run it around the edge of the stamp where there isn't supposed to be any ink to remove any that got there by mistake.
Also, try not to rock the stamp when you're mooshing it on the paper (that's a technical term, by the way, mooshing).
And ditto on the Signo. That's what I used for the doodling on this page:
Perfect Harmony By Lstory