After all this time... ever since my favorite Asus Vivotab Note 8 days, I still have the original version of Autodesk's Sketchbook Pro software that has the Copic palette built-in.

Having tried all sorts of pen enabled drawing programs like Clip Studio or ProCreate, Sketchbook still manages to pull me back in. I love the minimalist interface, and I can still say it's the only piece of creative software, where I feel like I use every single tool and feature... it's my goto whenever I need to quickly sketch, modify images, turn a background transparent, warp an image, do quick compositions, and do a quick Copic rendering without having to waste the actual costly markers. It just about feels like whoever designed it made it for me in mind. Basically every pen-enabled device I own, from Samsung Note to Dell Canvas has paired up with my Sketchbook scribblings, and it's still going strong. Wondering what pieces of software have you used, for so long, and why?