If you're not a fan of using adb commands to manually push apks to your Android device, there are a few management tools that have been developed by XDA forum members. iAPK is another tool, this time with a simple drag and drop feature.

Developed by XDA forum member qberty, iAPK is a Windows PC application that lets you simply drag and drop an apk file onto iAPK which then installs the file onto your Android device.  Benefits of iAPK is that it allows multiple apk batch installation, with tool tips and an operation summary at the end of each operation.

To try out the installation tool, provide feedback and feature suggestions, visit the application thread.