1. Vote @burnpost (also consider voting other posts which send a significant portion of their rewards to @null, or alternately @steem.dao)
2. Downvote vote-buying/selling, self-voting, vote-trading and other schemes which direct inflationary rewards out of proportion with value-add and increased demand.

Steem is inflationary by design, and this can, if used effectively, help distribute stake and increase the size of the pie, but it only works if the inflation is directed in a manner that increases the value of the entire platform/economy, increasing the price. Too many rewards directed to profiteering, and too few downvotes stopping that from happening, ruins it for everyone.