Dry cleaning
Glycol ethers (dipropylene glycol tertiary-butyl ether)  — In many cases they are more effective than perchloroethylene (perc). In all cases they are better for the environment. Dipropylene glycol tertiary butyl ether (DPTB) has a flashpoint far above current industry standards, so it is not a fire hazzard. DPTB can dissolve water-soluble stains as well as (or better than) perc or the other glycol ether dry cleaning solvents presently in commercial use.