A few times a week, I like to pick up a copy of the FT, WSJ, etc. and read through them to come up with interesting ideas and projects.
I'm aspiring to do the same with sci-fi short stories... Reading them but also asking the question of, "How can this be built?"
What tools and tactics do you use to stimulate ideas and brainstorm?
Limit your work in an artificial way. It will magnify and focus your thinking.
By way of a silly (and classic) illustration: try writing in a way that forbids inclusion of that common Roman glyph found prior to F and following D.
(And actually think about it! Don’t just opt for words you found in a book of synonyms!)