Building a “smart” home can mean different things for different people. You can start small with a smart speaker and a few smart bulbs, a robot vacuum, and some essential security cameras. Or go all out with “smart” everything from your doorbell, door locks, lights, and plugs, to your fridge, washing machine, dryer, and even your lawn mower.The possibilities are endless, and so is the amount of money you might end up spending to get the proper setup. If you’re smart about your smart home, finding deals throughout the year is a great way to reduce the strain on your wallet. And of course, Amazon’s Prime Day often has the best deals around. These are some of the best smart home tools you can buy this Prime Day.