These pens -- made in Japan by the iconic Muji brand -- are the best pens for everyday use that we've found so far (provided you're into thin pens).
They are .38mm, which gives a beautiful, thin stroke -- and the design is lightweight and easy to clip into a notebook.
You can [snag them on Amazon here](http://www.amazon.com/gp/product/B00E391XXM/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B00E391XXM&linkCode=as2&tag=everyd0e8-20&linkId=OXPNKURI47XQ76S3).
