Are you using custom domain for your blogger blog? Then make sure you take care of the domain properly. Most often what happens is after you have set up your Domain properly to work with the blogger blog, you hardly pay any attention to it afterwards. But what if one day you found out that your domain expired and you landed on some other page while accessing your blog ?
Do you use Label as categories in your blog? Labels are best way to categorize your posts in blogs and an essential widget to display in your side bar. Although most bloggers display this widget in blogger, some of the bloggers hesitate to use it because it looks bit unprofessional with the numbers of posts associated with the label.