As I was reviewing articles, I found a number of them that provided some good do-it-yourself tips.  Here are links to those articles:

6 Simple SEO Tips For Small Businesses

8 Easy Wins for On-page SEO

Yellow Pages SEO In The Post-Panda World

Small Business News: SEO Tools That Rule!

12 Local Business Online Marketing Success Secrets

Small Business News: Small Biz Twitter Tips