Ed hooked me on using color-coded backboards and color specific cross-connect wiring. I guess I'll be holding onto these for a while.
R/BL R/OR for Partner ACS system telephones.
R/YL for Merlin Magix 4400 series telephones.
BL/YL for analog devices and POTS lines.
I think I have some other color combination for the DSL cross-connect.