Amazon’s best pre-Prime Day deals: Kindle Oasis and Soylent

The fourth annual Amazon Prime Day doesn’t officially begin until Monday, July 16th at 3PM ET / 12PM PT, but the company is trickling out some worthwhile Prime-exclusive deals in the lead-up to the big event. Amazon is offering 30-day free trials of Prime here in case you somehow haven't signed up yet or if you let a previous subscription lapse over higher prices.A few of today’s best deals include:Kindle Oasis with special offers is $199 (usually $249)Soylent 12-pack Strawberry or