For in-store pickup only, Walmart offers Sterilite 3-Drawer Cart
in Black, model no. 28309002, for $8.98
. That's tied with last month's mention as the lowest price we've seen, and it's a current best by $4. Each one features four casters and measures 14.5" x 12.5" x 24".
Of note, the two-pack is the same per-unit price, but shipping is available for $5.97.