Encourage incoming links. Google prioritises sites that have a lot of incoming links, especially from other trustworthy sites. Encourage clients, friends, family members, partners, suppliers, industry mavens and friendly fellow bloggers to link to your site. The more incoming links you have the higher your site will rank. But beware SEO snake oil salesmen who try to trick Google with spammy links from low-reputation sites. Some links can actually damage your SEO.
Getting free website traffic may not cost you monetarily, but it will require effort on your part. However, the effort you put in will equate to the quality of the traffic you generate. As mentioned above, there is no point in getting more traffic to your website if those visitors are not likely to engage with your pages, convert into leads, or become customers.
11th point to me would be too look at your social media properties, work out how you can use them to assist your SEO strategy. I mean working on competitions via social channels to drive SEO benefit to your main site is great, working on re-doing your YouTube videos to assist the main site and also working on your content sharing strategy via these social sites back to the main site.