Thumb Score: +18

Amazon [amazon.com] has 13.5-Oz Chex Mix Sweet & Salty Snack Mix w/ M&M’s (Family Size) for $3.46 – 15% at checkout – 5% when you check out via Subscribe & Save = $2.77.
Shipping is free with Prime or on $35+ orders.

Alternatively, Walmart [walmart.com] has 13.5-Oz Chex Mix Sweet & Salty Snack Mix w/ M&M’s (Family Size) + Earn $0.75 Walmart Cash on sale for $3.46. Shipping is free with Walmart+ (30-day trial for $1 [walmart.com]) or orders $35 or more. Otherwise, select store pickup where available.