Do you have any procedures/instructions in writing? I maintain a manual for my office operations for staff to refer to when I'm not around. Some of it is detail-oriented (like steps to follow certain procedures), other parts less so - like suggestions for how to react when a patron freaks out over a lost book bill (I work in a library). It takes time to put things down, and regular revisions are a good idea (I try to at least look through each section of the manual every summer), but for me it has been time well spent. I've also developed a training checklist - really out of necessity, as before that I was constantly saying to students every September, "Did I tell you this already?" Brainstorm a list of things you want your staff to know about, organize it into sections ("Customer Service", "Troubleshooting", "Equipment", etc.) and use that as your outline for what to tell new hires. Does that help? My work force is 100% part time college students, so I feel your high turnover pain; and for me, everything gets going in late August to about mid-September - so getting them up to speed quickly is key.