What are your favorite Black Friday deals (2018)?

Please include description, link, price, and discount.

Related, but different thread:

GoRails has a lifetime 35% discount on their annual plans. Normally $199/year, now $144/year. (that's $12/mo). You keep the discount when renewing.

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What's the difference between buying and upgrade?

My buddies at are offering 30% OFF their lifetime plan, which is a steal.