To trailing slash my URLs or not

I’m going to go with a trailing slash on all my link URL’s of my sites. I know Firefox adds it there anyways if you omit the trailing slash.

Also, I believe you should use / rather than /index.php and that you should always hide the programming environment this way. It’s easier for users to remember an address if it’s just folders they are remembering. It’s also a good way to prevent link rot by not using files in the address, what if the extension of the file changes over time.

Anyhow, I found a great article by a google employee by the name of Matt Cutts who lists some key aspects to SEO regarding url canonicalization.