I had 5. I have spent the day sorting and shredding and have got it down to 4 and a bit. That still seems a lot.
Insurance documents, receipts, instruction booklets, certificates of training, exam results, bank statements (only 6 months worth) loan agreements, work contracts. A few (very few) sentimental drawings and cards, payslips, a few records from years ago I am requited to keep for legal reasons. And so on and so on and so on.
I was hoping to get it down to about 2 or 3 and reclaim some space, but that has not happened.
What do you have? What should an adult have?
In the poll, all drawers are standard filing cabinet size.