Little Known Fact: You only write with one pen/pencil/marker at a time.
The other 40+ writing instruments on top of your desk are taking up valuable space. Likely, half of them you hate to use or are dried up.
You can toss them.
Note: this Little Known Fact may not apply if you are some sort of Crayon Picasso. Coloring with a fistful of crayons is quite fun.
How many pens/pencils/markers did you toss?
(it's OK if you say 1-3 coffee cups)