I like trailing slashes. There can be pros and cons of them, but I just think they make URLs look nicer. So here are the redirect rules.
IIS with ISAPI redirect:
RewriteRule ^/([^.?]+[^.?/])$ /$1/ [R=301]
IIS with Intelligencia.UrlRewriter:
<redirect url="^/([^.?]+[^.?/])$" to="$1/" />
© Alexey Busygin, 2008–2010. alexey@busygin.com