Hm, usually i don't even know what day of the week it is. XD The result of working 7 days a week from home i guess. Every day is...just another day.
But yeah, when i was in school or working outside of the home, i hated Mondays. Even worse though were Sundays, the most depressing day, because i dreaded the imminent Monday.
I'm pretty sure it's just because it's the start of another whole week filled with the daily grind. But not to worry; soon it will be Saturday again. Sure, that will quickly come to an end too, but so does every Monday. ^_^