If there are no obstacles to tackle along your commute then I don't think it would make much of a positive difference. I use clipless because the bigger hills are so easy to climb with my feet firmly on the pedals. Also, if you don't get casual looking shoes with clipless adapters you'll have to carry another pair of shoes to change into. I ride to school so I just left a pair of flip flops in my gym locker.
If you have only one bike, I say install the clipless pedals and use them in your commute so you don't have to keep switching to platforms. At least commuting in clipless will get you used to the pedals very quickly