1) Acres 2) A heap 3) Aton 4) Dozens 5) Gobs 6) Heaps 7) Jillions 8) Lashings 9) Loads 10) Lots 11) Many 12) Oodles 13) Rafts 14) Scores 15) Slew 16) Slews 17) Stacks 18) Tons 19) Wads 20) Zillions 1) Ample amounts 2) Boatloads 3) Bunches 4) Carloads 5) Dozens 6) eBay users, essentially 7) Gazillions 8) Gobs 9) Heaps 10) Heaps or piles 11) Hordes 12) Large amount 13) Large indefinite amount 14) Large indefinite quantity 15) Large number 16) Large quantity, slang 17) Lashings 18) Loads 19) Lots 
Scads is American slang for a great deal, a large quantity, especially of money.
American slang for a great deal, a large quantity, especially of money.