My primary income is W2, but I have a 1099 side gig (teaching scuba and underwater photography at a university) that usually results in me itemizing mostly because my gear is stupid expensive and I rarely make an actual profit. The write-offs are enough to let me justify spending the money on the gear to help me break even while teaching.

I do multi-year write-offs on the big-ticket items, because one underwater camera rig (camera, housing, strobes, wet-lenses, etc) costs what I make teaching underwater photography across 4-6 semesters.