Right now you can get 20% off your purchase of a product (or products) sold and shipped by Amazon, up to a $100 discount, when you apply at least one Membership Reward point to payment.

This is especially pertinent as Amazon Prime Day just kicked off: 36 hours of massive sales for Amazon Prime members. Prime Day started at 12 pm PT today. Don't have a Prime membership but want to take advantage of the sales? Sign up for a free trial.