BuyBeehive via Rakuten offers the Crock-Pot 3-Quart Round Manual Slow Cooker in Black for $17.59. Coupon code "HOME20" cuts that to $14.07. (You'll need to be signed in for it to work.) With free shipping, that's the best price we could find by $4, although we saw it for half this price (briefly) last February. It features three heat settings. Deal ends February 4.
Every household should have these products on hand. Buying them in bulk on Amazon saves you cash.