My Mods folder is literally over 25 GB in size. However, I only use a few script mods at any one given time. Also, I have started using different Mods folders - each of them is named for their use, except when in use, and each one has a text file in it with notes about that Mods folder (when last tested good, general description of files most recently added/changed in the folder). This would probably be too much work for most people, but hey, I'm a bookkeeper!