Refreshing the Browser Cache 
Many web-developers have a very simple problem: "If a user returns to my web-site after it have been updated, he may not see the updates -- instead the cached copy on his computer."
There is a very simple workaround to this problem. Simply put this line:
<meta http-equiv="Refresh" content="72000">
within the <head> ... </head> element.
It will cause the browser to reload cached web pages older than 20 hours
(20x60x60 = 72000).
I have tested the technique on the following browsers: Netscape Navigator
1.22, 2, 3, 4 and Microsoft Internet Explorer 2, 3, 4, 5.
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