Keeping pleats in place

[Shanntarra]

My rogue is being fussy about his kilt. Every time he wears his Cotton/Poly X-kilt he wrinkles his pleats. He hands it to me to press. Thankfully because I'm always sewing; therefore, I have the ironing board out but he wants to keep them sharp all the time. BTW, I did the sharp stitching on the outside and inside pleats when I made it. I told him it isn't going to happen unless you have the special chemicals that Dockers themselves has. He wants to starch his kilt, which I told him was a VERY bad idea.

Any suggestions on how I can keep the wrinkles out of his kilt? Or do I just get to make him a new one with a different fabric?