Can someone PLEASE tell me where I can find a replacement driver's side sun visor for a 1998 Oldsmobile Intrigue? eBay doesn't have them, nor does Amazon. Dealerships want WAY too much money, so they're out. HELP! Thanks. By the way, my price limit is uner $40.

Have you tried any recycling yards? That's not an ancient car- 15 years, but I am not very familiar with that model.
Maybe online sites like this one could give you a lead:
1998 Oldsmobile Intrigue - Auto Parts Warehouse