Depending on if you have a Samsung Android Phone and the correct version of Android, you may have a built-in edge panel that acts like the taskbar on Windows desktops. It contains recent apps and ones that you pin to it. It may already be activated but it only takes a second to set it up. What is particularly great is that it's always available from any Home Screen or even if there is an app running. Here's how to use it and modify the Samsung Edge Panel to contain the apps you want available anytime.

For complete instructions and a walkthrough
watch the video below