As any of you, I don’t like to connect my phone to computer to transfer files every time. It’s still the fastest way for large files of course (or many files at once) but it’s quite annoying when it comes to transfer just a file or two (a wallpaper, song, etc) to your phone.
Lately, I discovered a free online service called Awesome Drop which lets you transfer your files from your computer to your Android phone over the web.
Next, simply drag-and-drop your files into the box and they will be transferred automatically to your phone.
P.S. Pay attention on your monthly data caps if you’re on a metered data.