How to send files between Android phones easily via CShare
First, get CShare from the Google Play Store on your phone or tablet (link). It's totally free. Open the app, and it should immediately recognize your device's brand and model name.
Next, hit Send. You'll be greeted by a file browser where you mark the designated files (it can apps, pictures, video, music) and hit "Select" when you're finished. Now, here comes the only tedious part - getting the recipient to install CShare. It actually happens pretty fast, but if your recipient isn't an avid smartphone user, it might take a bit of direction to get them on the right track. Anyway, you have a number of ways to proceed. The first is to get the recipient to read a QR Code and download the app. The others send a URL or SMS containing the download, and the final, possibly most sensible option is to send the app to your recipient via Bluetooth.
When CShare is up and running on both sides, it's time to press the Receive button on the receiving end. If everything goes as well, the selected file(s) gets magically beamed to the recipient phone with a cool animation and a tiny speed report so you can brag later. Like a properly polished app, CSHare has a file transfer history, so you'll know where to find your files.