Every Blogger needs a refined template,changing in style again and again can loss your visitors.My recommend way to change blog template is to create demo blog and write and create whole script on separate blog.After completion copy whole script and replace with your current template.
But this is not the only deal,still people don't follow some of instructions that could be a nightmare for any Blogger,if its template is get disturbed.Today,I'm sharing my points on replacing template.
Take Care Of Advertising Banners
If you are using advertising market then you must know that advertiser pays you full payment and if you will remove the banners,possibly you will find such problems,usually while finding sponsors.
Don't Miss The Template Basic Elements
Same way if you want to customize listing then,don't forget to do it.Customize headings according to your blog design and code them pretty,as best design is popular design.