As I become increasingly "old," I feel like I'm witnessing my perception of weekends changing so much.
Back in college weekends were basically just an extension of the rest of the week. Exciting nonetheless, but when you're working part time and going to class even less... and let's be honest college was just a big party anyway.
In the most recent years after graduating college weekends were a great way to revisit that college experience. Party all night, sleep until 11, 12 or even 1... etc. My only deterrence was this job thing that I had to do Monday-Friday.