Finally thought of something this plugin might need...
Most of my sites are rather small, in the 15-20mb package range. But I have a website I'm working on right now that, because it has so many images, packages at 350mb! Needless to say, this takes a really long time to both package, download, and upload. And I'm really worried about it going over 500mb, which is my server's limit for uploading files.
Therefore, would it be possible to have a configuration option to exclude certain files and/or folders? I don't necessarily need to package all the images every time, so that'd help make the package a lot smaller.
Akeeba Backup for Joomla has this option, and I've found it to be very helpful on the larger sites I work with, so that'd be a good reference.