I joke that if left alone in a room, I'd end up drawing logos. I keep all my explorations and use them for parts on new projects (shapes, discarded marks, custom letterforms, etc.). There are 116 files in that directory at the moment and people always comment on them if they see them over my shoulder. Here are a few.
logo sketches
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logo sketches

Examples from a few logo explorations over the years.
6
327
0
Published:

Creative Fields