I still wear t-shirts 99% of the time, and usually with my kilt. With my Royal Stewart (Which I told my wife I was thinking of getting rid of and she said I should keep it, though I think it draws too much attention...) I would usually wear one of my Blazin Challenge BW3 shirts, or a black Aqua Teen hunger force t-shirt. I havn't worn it in months though, now I wear my Gordon, and with that I used to usually wear my green Eastern Michigan t-shirt, though now I cycle that with a Dropkick Murphys shirt, with a random shirt tossed in from time to time. I just cleaned my 'wool' black Irish kilt, and it looks better than when I got it and has been demanding for some use, but I don't know what I will wear with it.