I did two Manhattan rentals this week while there on business.
Now I'm back in my suburban home and I thought I'd do some searching for cheap rentals. Turns out there's a Hertz location as part of a gas station nearby I never noticed.
After searching online for some promo codes I did:
CDP: 211762 (Amex Plat)
PC: 162330 (?? No idea what this is, but it's $5 off, seems to work on Saturdays but not Sundays).
That gets the rental down to about $15 base rate, $19 a/i.
Gonna do one on Saturday and see how it goes.