Well, first, it's kind of rude to ask a complete stranger about their personal finances.  So, you know...
Anyway. My day job is as a senior product manager for the customer website of a major US mobile phone carrier. I focus on the aspects of the site where customers are able to change their plans and update their services. I've been working in the tech industry for about a decade now, and focus pretty heavily on product and program management.
Outside of my regular "day job," I also narrate audiobooks on a freelance basis, and own my own audiobook production and distribution company with a business partner friend of mine.
However, most of my pen purchases are paid for by selling existing pens in my collection and by selling my own line of paper notebooks.
The long and short is that I spend A LOT of my time working, both on my regular day job and on several side businesses.