You can shop at H&M or you can shop at Neiman Marcus and it won't make one lick of difference if you aren't taking the best care of your clothes. Three quick tips:
1. Be honest with your dry cleaner. She will be better equipped to remove a stain if she knows exactly what it is and what measures you took to clean it up before bringing it in.
2. Don't try to remove a stain on silk or other dry clean only fabrics with seltzer. It's dry clean only for a reason and now your cry cleaner isn't just working on a stain, she needs to fix the water stain, too.
3. Always iron clothes inside out. The iron can make silk, chiffon and other delicate fabrics shiny.