WebCatalog is a free application which enables running your favourite websites and services as native desktop applications.

You could have Amazon Prime, Gmail and YouTube running in separate windows, for instance. Each one looks and feel just like the regular website, but the windows don't include any of the extra browser UI clutter (address bar, toolbar), they appear separately on your taskbar or dock, give you native desktop notifications when there's a new call or message, or something else important happens, and are added to your Start Menu for easy access later.

Launch WebCatalog and it displays large icons for every supported site and service-- and there are plenty. Amazon alone gets apps for Alexa, Drive, Fresh, Music, Prime Photos, Prime Video and Shopping, and other services include Basecamp, BBC iPlayer, Bing, Dropbox, Evernote, Facebook Messenger, Gmail, Google <anything>, iCloud, iCQ, OneDrive, Netflix, Outlook.com, Skype, Spotify, Twitter, WhatsApp, Wikipedia and more.

See something you like, click Install and it's added in seconds. There's nothing else to do, no dialog of options, no folders to choose or anything further.

Tap the Installed button to display icons for each of your chosen apps. Each one has Open and Uninstall buttons, and again, that's it.

Launch one app, then more if you like. Each one runs in its own instance of Chromium, but resource requirements are relatively low. We found each window required fractionally under 50MB at a minimum, so the chances are you'll be able to run plenty of apps without having any significant impact on your computer.