Twitter: sadly, the UI that keeps showing me people's favorites instead of just their retweets is killing my enjoyment. I really wish they would quit screwing around with someone that should be so simple.
This was really bugging me until I realised that sorting the people I follow into lists basically reverts my feeds into a standard chronological timeline again. Minus Twitter's "screwing around", the site is actually useable. Might take a bit of work if you follow a lot of people, but it's totally been worth it for me at least.