Your Recommended Way Of Handling URI Segments? And Why?

[eluser]mdvaldosta[/eluser]
I'm wondering what YOUR recommended way of handling uri segments, and WHY? I've always used something like:

Code:

function items($action = NULL, $id = NULL)
{
    if($action == 'add')
    {
        // Add new item
    }
    elseif ($action == 'edit' && $id != NULL)
    {
        // Edit item
    }
    // etc. etc.
}

But was considering using uri segments or _remap but didn't want to change if it was just a coding style preference. Just wondering what others are using and why they were doing it that way. Code examples are a plus.