I noticed today that about 45% of subscribers to this blog use the e-mail subscription option instead of RSS. While e-mail is definitely a good way to be notified of updates to the blog I would suggest that you learn about RSS and how it might lighten your inbox load.
The best explanation I have found so far is a 3 minute video called RSS in Plain English (the website also has links to information in other languages).
One advantage of RSS over e-mail notification is that your inbox is not filled with update notifications at inconvenient times. Using RSS you go to your RSS page (or reader application) when you want to.