Amazon Video was the first streaming giant to add video downloads in 2015. It's ideal for long flights or commutes without Wi-Fi access; certain content is locked down geographically, so you might not be able to watch it overseas on Wi-Fi, even with a VPN service. Just hit the download button next to what you want to download. You can even put your device down, walk away, and it will alert you when the episode or movie has finished downloading in the background.

Amazon has cracked down on how generous Prime members can be with sharing their membership benefits; they can now share their benefits with one "adult," as opposed to the previously allowed four (though four teens and four children can still be included). But Prime subscribers do still have the ability to share access to Amazon Video features, which can be used across multiple devices (Netflix, on the other hand, requires an additional fee for two or four screens, and Hulu only allows one-viewer accounts).

To share your Amazon Prime benefits, including Prime Video access, set up an Amazon Household and then select Add an Adult under Setup your Household now.

Host a computer browser-based watch party on Amazon Prime with up to 100 other people who also have Prime, and sync your watching and chat at the same time. Select a movie or episode of a show and then click the Watch Party icon. Enter a name to use during the party and then click Create Watch Party. You'll be given a link that you can then share with your friends.

Make your watchlist your own by creating separate profiles for everyone who shares your account. Whether you're on a browser, mobile device, or a streaming device, click on the account profile and then Add New to set up new profiles for up to five others on the account. You can also edit and remove profiles from this same screen.