Dropbox is handy, but you can make it even easier to use with a wide range of products and services that work hand in hand with the cloud-based storage, syncing, and sharing service. Check out these five favorites for getting even more bang for your Dropbox buck. DropItToMeDropbox lets you easily share files for other people to download, but it's harder for people to upload files to your account--unless you have the free service DropItToMe.