I only have one light on my commute where this is an issue. I hold my place in line.

A few times I work downtown. I take the lane or stay to the right or left depending on the situation.

Lane splitting is good until you make a mistake. I will never take those kind of odds.

I am sacrificing time for exercise and enjoyment (and of course at $4 a gallon, money). So what is an extra minute or 2?