Sorry to have fallen behind…
Write from the perspective or your favorite super hero or villain (not their alter ego) ordering coffee from Starbucks.
Exercise your use of imagery. Describe something in a poem or prose without actually saying that that something is.
Create a bucket list for your character. Or create one for yourself and turn it into a poem or an essay.
Perform a brain dump. Take thirty minutes and just empty the entire contents of your brain onto some paper or into a word document. Do no editing. Do no formatting. Just write it all down. You can sort through it later.