Given that backlinking is very important for Search Engine Optimization and that most backlinks go to the homepage (index page), should I put all my keyword phrases I want to target on my index page? For instance if I had a web site that sold pet supplies and I want people to search for "dog collars", "cat litter" and "dog bowls" how should I best configure my Web site so that people searching for all 3 will have my website come up first in the search engines? Also it seems my index page should be optimized for the word "pet supplies" or "pet supply store" but those search terms are most competitve to place for, so I may be better off optimizing my Web page for less competitive terms like "dog collars" or "cat litter". Should I then optimize my index page for the lesser competitve keywords even though "pet supplies" is the more relevant keyword phrase that describes my business on the index page? In short should I change my title, meta keyword descriptions, and header tags on my index page to reflect "dog collars" rather than "pet supplies"?