get some bib shorts and a jersey and definitely clipless pedals if you dn't got em.
if it's for commuting, don't buy any specialized outlier or swrve crap. i got some swrve knickers and they're only wearable after some modifications. even then i only wear them in the rain. they suck. levis 510 es where it is at dawg. they also just make padded underwear you can wear with any shorts you want - instead of the mtb short option, which usually look like ****.