Regarding meta tags - I put the entire list (it's a long one) of meta tags on every page in the site. If I have a page selling widgets and another selling nuts and another selling bolts do I put widgets, nuts, bolts as meta tags for each page or just widgets on the widget page, nuts on the nut page, etc.?
Were it me, I'd compartmentalize them to the extent that they are seperated. Distinctive things stand out, muddled ones do not.
To elaborate: Suppose one plugged 'nuts' into their favorite engine and all they got were 'bolts' with a sprinkling of 'nuts' that they were forced to wade through. Catch my drift?