SAVE $20: Kick your K-Cup habit with the all-new Instant Solo , a single-serve coffee maker that ships with its own reusable pod. Amazon had it on sale for $79.95 as of Jan. 21 — that's 20% off its suggested retail price of $99.95. Single-use coffee pods are canonically bad for the environment , but woe is the eco-friendly caffeine consumer who's tried finding a better alternative. Keurig's My...

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