Dropbox allows you to share files, especially large files without taking any space in anyone’s email box.  At the same time, Dropbox automatically and continually backs up all files located inside Dropbox folder on your computer, virtually ensuring against hard drive crash even if never remember to back up your files.

In addition, Dropbox keeps files synchronized among your computers.  It means whatever data you saved in the lab will be there on your home computer a few minutes after you turn it on and let it synchronize automatically.

Step 1: Sign up, Download and install Dropbox  https://www.dropbox.com/

Step 2: Enable Public folder.  Dropbox changed the configuration in such a way that you need to configure it to have public folder.  Here is how you do it.  https://www.dropbox.com/enable_public_folder

Step 3: Once you have your public folder working, then you can start sharing files just by emailing or submitting file links.