I resteem what I think is important for people to see. There's a pretty easy way to spot resteemed content:
With that said, I realize that a lot of the content I choose to resteem is a series of posts and that I can probably cut way down by only resteeming one of the posts (assuming the author will link to the other posts in the series).

Thanks for getting me to actually think about this @steevc I will keep this in mind going forward.