Very few people out there know of this little trick that you can download and install Apps on your Android devices using your computer. Just log into your Google account and open Google Play. From there, find the app of your choice and click install. You will be shown a drop-down menu containing your Android devices connected to the Google account.
This method is particularly handy if you want to install the same app on multiple devices, or if you have just bought a new smart phone. Another reason, your PC screen is also bigger which allows you to browse, explore and find the right app quicker.