I often "think" on paper. So, I use a pen and paper almost every day.

This isn't writing intended for consumption. I'm the only person who ever looks at my own notes, and even then I only ever look back a page or two. Because I'm thinking through a problem or design, older notes are usually less valuable -- either I've changed my mind on the topic (arrived at a better solution), or I've implemented the solution and moved on to something else.

My notes include a lot of lists, diagrams, symbols, follow-up thoughts in the margins, etc. I think writing the equivalent notes on computer wouldn't feel as natural.

I don't write very quickly. I only need to keep up with my thoughts, so that's not a problem (I'm not sure I didn't insult myself just now).

Anyway, my handwriting is probably fairly legible -- a side effect of not being in a hurry. I imagine it would look different if I were trying to get words on paper as quickly as possible. I print, but over the years some of the letters have developed there own style. I suppose that happens to most people's handwriting.

I use a pen and paper daily, sometimes for a few thousand words, but that's the habit of a writer (I still produce the majority of my work on computer). However I write purely in joined italics, even though I know how to write cursive it just appears to be a lot of unnecessary filigree for productive amounts of writing, not to mention that you'd have to do line spacing or the entire thing would be a huge mess.

I'm left handed to begin with and my writing is essentially illegible to many people. In fact it's kind of person-sensitive in that the majority of people who can read it are either left handed also or are related or close friends with a left handed person. Right handed people are generally blessed with neat handwriting as they're writing the correct way, so they rarely get experience reading poor hand writing.

My shoddy writing always allowed me to read the teacher's writing in school though, but that's only because theirs was always worse than mine.

I look forward to being able to replace my legal pad and notebooks for a properly useful tablet. Until then, I use pen and paper every day.

After then, I'll likely still be using a tablet pen to write every single day. When diagramming, or editing, it's just too easy to jot out notes in handwriting rather than calling up some on-screen keyboard.

I find diagrams and other structural / notational concepts are far easier to put onto paper with a pen than enter into a computer. For example, I was recently implementing a Patricia trie, and I jotted down some of the different cases for node splitting etc., to get the semantics clear in my head for the code I was about to write. Typing it into the computer would have been much more laborious.

I keep a logbook and write down everything I do (well, everything work-related) in it.

Looking at it now, I see that I mostly print -- my letters almost never join up. I'm really not convinced that joining letters together saves any time at all.

I jot notes or write them for other people all the time.