Lots of good ideas. And some I've never thought of.
For several years, I've been downsizing my stash making comfort quilts. So when I find an interesting straight line/no triangle pattern, that becomes my next project and make 4-8 of them, until I run out of fabric that fits the project or get tired of the pattern.
The opposite works too, pull fabrics I want to work with and find a pattern that fits with the amount available of each fabric.