I got the SM-PD22 flat pedal cover kit (plastic/resin platforms that clip into the pedals), going to use those for when I switch to heavier shoes for colder temps.

EDIT: Clipless pedals are awesome if you want to go faster of flat ground or if you want an easier time with hills. I have them on my Sirrus Elite, realised I was getting them after doing the 5 Borough Bike Tour in NYC.