1. Rotation: Keep a stock of enough shirts so you are able to rotate them throughout the week. I recommend at least 5 shirts for a normal work week.
2. Launder less: No matter if you wash at home or send them out, do it less often. The more you launder, the faster you will wear down the fibers in the shirt. Try to get 2-3 wears out of a shirt before you wash it. Only wash once it smells that it needs it.
3. Treat stains immediately: If you see a stain, take care of it before it sets. Carry a stain stick with you or keep one in your desk at work.
4. Avoid starch: Starching also wears down the fibers of the shirt and will shorten the life of the shirt. Buy top quality dress shirts and you won’t need to add the chemicals.
5. Shampoo: Yes, you read that right. Treat ring around the collar with a clarifying shampoo before laundering to break down the oil that creates the problem in the first place.