One of my favorite places lately to look for healthier food options (including gluten free food) is Vitacost. During the month of October they are having a Buy One Get One 1/2 Off (same product and size) on certain products. Some I've tried but there were others that I've been interested in trying.
They have a 16 oz jar of Organic Apple Cider Vinegar with "mother" for $2.39 so it would end up being 32 ounces for $3.59
Also Gummy Multivitamins for kids. The jar contains 150 servings and costs $11.49. For $17.24 you'll be getting 300 servings of multivitamins!
The last BOGO deal that looked interesting to me was the Cherry Fruit Extract Capsules. I was just reading recently about the benefits of eating cherries (good for pain relief specifically due to arthritis) but it said you should eat 20! Each jar contains 90 servings and costs $11.99 so with the BOGO deal you'll be paying $17.99 for 180 servings.
If you've never shopped with Vitacost before please use my referral link. Once you sign up you will get $10 off your first order and I will get $10 off as well.