I assume that ever steem user knows about that you can earn STEEM in 2 basic ways - As an Author - for creating the content and as a Curator for upvoting the content. While your provit from the creating content depens only on the voters, Curator profit depends on many factors like time of your vote, your vote value, how many people voted before your, payout increase after your vote etc. It is hard to achieve maxium profit from curating content when you manually upvote posts but fortunately, we can delegate this task to others and additionally make money on it.

Smartsteem

Smartsteem is a platform where you can delegate your SP or sell your votes. You can easily calculate your profits which will be around 0.1 SBD per each 100SP you own. Additionaly if you decide to sell your voes you will also receive curation reward. After just one day with smartsteem it generated for me 0.106 steem and 2.796 steem dollars.
Smartsteem will keep only 15% of your total gains for them. System is very breezy and safe because it uses steemconnect to manage your account and it looks like perfect solution for someone who does not have time to utilize voting power everyday