Prime Day 2018 is upon us. And that means if you’re an Amazon (AMZN) Prime member, someone who likes a good deal or simply have a pulse, you’re going to spend an inappropriate amount of time browsing the site for some incredible deals beginning July 16.

Naturally, you can expect plenty of tech deals this year. But before you click “Add to Cart,” or get fired for gross negligence for spending the entire 36-hour sale online rather than, you know, working, brush up on the best tips for buying everything from smartphones and laptops to TVs and smart home gadgets.

Whatever you decide to buy, we’ve got you covered.

What to look for in a new TV

If you’re hoping to score a sick new TV during Prime Day, and chances are there will be at least one, there are a few important thoughts to keep in mind. The first is size. My rule is always go big or go home. Just don’t go too big or it won’t fit in your room.

The point is, you want to find a television that’s the right size for your home. Check out the size of the TV on sale during Prime Day, then measure the space you want to place it to make sure it’ll fit. And remember, you’re definitely not going to be able to make your friends jealous with a new TV that’s small.

A Sony TV that was on sale during last year’s Prime Day.

If you’re buying that sweet new television to upgrade from your current 1080p set, you’ll want to purchase a 4K model. 4K TVs have a higher resolution than 1080p panels, creating a sharper image. It’s worth noting, though, that you’ll only really see a difference in sharpness on TVs that are 55 inches or larger. A 32-inch, 4K TV is pretty much pointless.

It’s also worth checking to see if your new TV offers high-dynamic range (HDR) compatibility. HDR increases the contrast ratio of the image on the screen making for a wider array of colors, as well as deeper blacks and brighter whites. Chances are, if you’re buying a TV that offers HDR capability, it’ll also be 4K….

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