Today’s Deals: Motor Oil, Costumes, Free Admission

I subscribe to the promotional emails of hundreds of companies so you don’t have to. I sift through 1,000 deal-touting emails every week. Most are worthless. But some offer valuable coupons, promo codes, sales and freebies — which I collect and organize.

Note: Expiration dates are in brackets and special instructions are in parentheses.

Auto

  • Motor oil: $5 off select Valvoline or Castrol Edge products at Walmart stores (print first) [expiration unknown].

Entertainment

  • Museums: Free admission at institutions participating in Smithsonian’s Museum Day Life on Saturday [9/28 only].
  • National parks: Free entrance on Saturday, which is National Public Lands Day [9/28 only].

Halloween

Home

  • Patio furniture: Up to 50 percent off during the Red Hot Summer Clearance at Walmart online [expiration unknown].

Health and beauty

  • Shave gel: Free can of Edge with the purchase of one in stores (print first) [expiration unknown].

Tech

  • Rayovac: Free 2-Hour Power Pack for iPhones or micro-USB-equipped smartphones with the purchase of one Power Pack online [expiration unknown]. They give you an extra two hours of battery life — no charging cord or outlet necessary.
  • “Dexter”: Up to 59 percent off each of the seven seasons at Amazon.com on DVD or Blu-ray [expiration unknown].

Clothing, shoes and accessories

  • T.J. Maxx: They now offer online shopping for shoes, handbags and women’s clothing, as well as Halloween costumes. Shipping is free if you spend $75 (use code SHIP4FREE) [10/27].

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