After so many years (with long and veeery long pauses) I haven't finished Skyrim yet...actually I'm quite far from finishing it, lol, even if I've been playing it for more than 400 hours.
My Skyrim folder size is about 60 Gb atm, with more than 300 installed mods and the game has become virtually "infinite". For example, a couple of months ago I've finally spotted an area (a village built on trees) from a mod I installed 6 years ago.
Damn...I need to finish at least the main quest...which I heavily modded and "enriched" as well... ?