Photo storage / management / icloud w/ iPhone

I have an iPhone (and an iPad) which I'm very satisfied with. I take quite a few pictures, and, since it's digital, sometimes I'll snap 5-6 pics of the same subject so I can pick and save the best one.

The problem is, my pictures, ALL of them are automatically uploaded to the cloud. Even the bad ones. And I'm constantly running out of space in my iCloud account.

My question is, is there a way to selectively send only my favorites, my best pics, the ones that I want to save, to the cloud? (Why would I want a bunch of almost identical pics saved to the cloud)?

Preciate any help here