CGI Programming by Collin Forbes
  Stupid Calendar Tricks   Updated: Thur, 20 Apr 2000  

Run calendar.cgi from the command line.
If your server doesn't permit you to install CGI scripts, you can run calendar.cgi from the command line and redirect its output to a file that you later upload to your web server:

perl calendar.cgi > calendar.html

Condense many events into a link to a web page.
If you have a lot of things happening on one day, a simple workaround would be to make a web page describing these dates, and then set an event that is a link to this web page. You still have to write another web page, but it keeps the rest of the calendar relatively uncluttered.