Load "pages that load in a new window" in a new tab!
This probably exists in other browsers, but I know about it and use it in Camino. Some websites have links that open in a new window by default. Even if you have tabs enabled, it won't open in a new tab. There is a feature in Camino that can change this however. It is "Open tabs instead of windows for" "Links that would open new windows" in the "Tabs" tab of Camino's preferences.