I got a nice package of free goodies the other day (sadly ended up not being quite as free as at first expected due to customs charges...) which happened to include a Sharpie.
Not all that interesting in of itself. But it had a nice sharp point (0.5mm apparently) and I liked the way it wrote.
Decided to try it out in my Buffer moleskine and was slightly disappointed to discover that the ink bled through a little to the other side.
Shame - I could definitely have got used to using that Sharpie in that way! Maybe I need to investigate some more Sharpie-friendly notebooks for future reference!
[Image credit: Nick Harris]