For me:
Reddit
MyBroadband
SA Gamer
Youtube
Gmail
RARBG
NZB-SA
Udemy
Twitter
News24 (via RSS)
Those are probably my most used sites. I don't check Facebook often. The reasonably big number of tech and gaming sites I like (eg. Engadget, Anantech, Tom's Hardware, The Verge, BGR, Eurogamer etc. etc.) I access via live RSS folders in Firefox, so I don't actually go to their website unless I click a headline. Same goes for news, from News24, BBC, Sky, VICE, Al Jazeera etc. Scanning the headlines of these websites seems a million times faster to me than actually visiting them individually.