Our CAD standards are pretty well there (for now, but that may change dramatically). We have 5 users and we work well on things like layering and layout standards. All the primary stuff is set up in a template so it's quite a no-brainer. For CAD, it'd be "USE THE TEMPLATE".
The real tough one is CONSTRUCTION standards. Being a very custom millwork shop, we'll do what ever is requested, or required to give the customer what they want. We do have published construction standards.... but they are really only a starting point. Every job we do departs from them sooner or later.
The other toughie (working on this one) is the PROCESS. I tell guys that when they get a set of archie drawing to spend a few hours studying them and planning their strategy first, before they even boot autocad. This has definately saved me huge amounts of time when a deadline is looming. Kinda like: study the map and plan a route, instead of just jumping in the wally wagon and taking off... getting lost... and missing a deadline.
Most of the guys here are very good at compliance with cad standards. But occasionally I need to SMACK 'em when they do something stupid like override a dimension, or explode a hatch. Didn't used (?) to be that way. Over time they've seen the benefit of WHY things are done the way they are. They appreciate how much easier things are from the previous "management". (Got a long way to go though!)
We're trying to find a method to get us to 3D that will work well for us. Evaluating several 3rd party apps, but some of them are lacking what we need.