I'm wanting a structured, classic black handbag for work. However, it will also be used for casual use so I need it to be a real workhorse. Does anyone have any suggestions within my price point? My budget is $2k or less. I would prefer designer if the quality is there but I'm also open to contemporary brands. I don't want anything too large (no bulky totes or slouchy hobo bags). It needs to be ladylike with simple, clean lines, not too much branding. Thank you!