Office Depot has a 10-ream case of copy paper for $29.99 or $26.99 with subscription delivery (limit 4). Get an additional 10 percent off with coupon code 82709510 to bring the total down to $24.29/case (which for you math gurus out there is approx $2.43/ream)
It’s hard to pay for paper, but the days of free paper from staples appear to be gone and most of the "almost free" paper deals are for such small quantities that as a business owner it would be impossible to survive on those deals.
https://www.officedepot.com/a/products/348037/Office-Depot-Brand-Copy-Print-Paper /