Are you kidding? I hardly have time for bike riding for its own sake. By commuting I can take time I have to spend anyway getting to work, and do it enjoyably while getting exercise at the same time. By that analysis, bike commuting saves me time. Other than that, I go shopping & to social outings by bike whenever it is a feasible option. Other than for exercise to make up for missed commuting days; I don't have time to go biking with no destination.