The Philharmonic Gets Dressed, Karla Kuskin (illus. Marc Simont, HarperCollins, 1982). The least negotiable thing in the Psmith household — after death and taxes, but only barely — is bedtime. I won’t say we’ve become a well-oiled machine, because we have been outnumbered for many years and that has a way of throwing toothpaste in the gears, but we are