Starch and ironing WTf?
WASH AND WEAR ALL THE WAY.........
pull em out of the dryer damp and button them up and hang em they'll look as good as anyone elses..... and they'll be ready to fold when completely dry. Pull the folded ones out of you suitcase and hang em in the bathroom when you shower on your overnight and they're good to go too.
I guess it will count on the quality of the material too....... I found a heck of a deal a few years ago at the Outer Marker in YYZ with the exchange rate then they came out to about $10 bucks each and they have held up great for several years now. The tag inside says "GOLD STAR" 65% poly and 35% cotton....... I dont think the exchange rate is that great now but I'm planning to replace these at the same place next time I layover there even if they cost $20 now. I think the Outer marker has a website for mail orders. They are located on very short final for 24R next door to a place called the Landing Strip full of local talent......... all in all a very good aviation related field trip

My 2 cents of rambling on with out giving the shirt off my back............. (sorry for the bad humor, it was an early report this morning)