If you are simply interested in serving files from your computer at specific times, but don't necessarily want to go through the hassle of maintaining an FTP server, you might want to try a program like Hotline. Hotline is a kind of Internet communication software package that allows you to browse through thousands of servers to download files.

Hotline includes server software, so you can serve your own files as well. Making yourself a private server is as easy as password protecting your site in the same way as an FTP server. The primary catch is that you must use the Hotline software in order to serve or receive files through Hotline.

Visit this guide for step-by-step instructions on setting up Hotline.