In my line of work, I still require the use of actual writing skills. I know many places have gone green, or are in the process of (going green) but there's just something about actually writing.
I prefer to use Japanese pens. They are by far the most superior type of pen you can get. I've tried regular gel pens or ballpoint pens, even fountain pens-- which are so messy to me! Japanese pens allow for a myriad of different writing tips and sizes, different grips, etc. With drafting pencils, you can customize them!
That's all I order now-- drafting pencils. Every step of the process is customizable. I can get a specific lead width, color, size, and grip. I get it's easier to go to the store.
But when writing is still such an important part of your lifestyle, and more importantly, your job, it's so much better to have something that you're comfortable with.