PITT tip tip
Here’s a tip for anybody who uses Faber-Castell PITT pens: After the tip gets all worn and frayed, you can pluck it out with tweezers, spin it around, and put it back in backwards. There’s a second tip on the other end! Make sure not to spill the ink out of the marker’s body while you’re doing this. Here’s a YouTube video of the process, from Adam “Ape Lad” Koford.