6] The tags are something that you may find a few varying opions on, I personally always use a couple of tags as I would for extra seasoning for a pot of stew. A little taste of what has influenced the post that’s the way I look at it, sometimes I do exact match keywords an others not.
7] Set-Up Your Meta - The bit that you read when searching under your Site SEO title is entered in the ‘meta discription’ Adding your target keyword or phrase in here is again great for human readers but great for google. As again the google spiders are reassured that it’s found the right quality content related to the readers search string.
8] Best practice is to make sure that the first sentence on the page has your main key phrase included or at least a varition of the main or secondary keywords. Now some may arge here that it’s not neccasasary, but unless your Jim Connolly your going to need a little help getting your word out and traffic to you site and onpage SEO helps.