.htaccess

[dangerousprince]

Okay, so this script works great:

Options +FollowSymlinks
RewriteCond %{HTTP_HOST} ^tbplasteringltd.co.uk$ [NC]
RewriteRule ^(.*)$ http://www.tbplasteringltd.co.uk/$1 [R=301,L]
RewriteEngine on
RewriteRule ^(.*)\/$ $1.php [NC]

However, it would be even better if it would work without having to add the extra forward slash on a link: www.yourdomain.com/about/ rather than having it like this: www.yourdomain.com/about

I've seen sites that use the forward slash but if you take it away, it will instantly forward to the one with the forward slash. It looks so much more professional. Anyone have any ideas?

[codefish]

Did you try to remove it from the regular expression?
RewriteRule ^(.*)$ $1.php [NC]

[dangerousprince]

Yup, tried that and get Internal Server Error (500).