This is a simple things to make your title of your blog always SEO friendly.please find code at your template
Layout>edit HTML
<b:include data="'blog'" name="'all-head-content'/"><title><data:blog.pagetitle/></title><b:skin>
and replace with this code
<b:include data='blog' name='all-head-content'/><b:if cond='data:blog.pageType
== "item"'><title><data:blog.pageName/></title><b:else/><title><data:blog.pageTitle/></title></b:if>
<b:skin>
