I didn't count. It ended up being an epic novel this year. We ran out of lines for W-2 entries on our local tax forms (for the city we live in). Ended up having local tax involvement with 6 cities due to the way companies are doing accounting now (go visit Cleveland branch during a business day, BANG, now you've got to add Cleveland to the list of local entities that appear on your tax forms). We even ended up having to pay taxes to a state we don't even live in. :-)
I'm just glad I didn't have any "sporadic income" (my state's term for self-employment not on a regular basis) last year. Reading the state tax law, in one place it says to put it in the usage tax box. In another place it says do NOT put it in the usage tax box (but doesn't tell you where you are supposed to put it).
I'm thinking about quitting my job, pulling all my money out of everywhere, and living as a caveman out of pure spite right now. The US tax system is a nightmare!