People really need to start grouping with their jungler when the game starts...
There are so many times that I've been sitting in the bush trying to defend my buff, and the entire enemy team (except top usually) decides to just walk into my jungle. Because my team isn't with me (usually sitting at their tower bot or in the fountain still) I often get killed or give up bush control. Then I lose my buff because guess what? The enemy team still has control of our jungle! I'm unable to gank because I'm behind and I stay behind the entire game usually. Then my team has the nerve to complain at me for not ganking. Well guess what? I have zero sympathy for you. You chose to not give a sht about me so why should I give a sht about you?
I shouldn't even have to tell you to do this. When the game starts you need to help your jungler (either defend or possibly invade)!