This question popped twice in two days and I wanted your opinions ? The first thing was we were program a system off site and there were two ways we could program the system . The first way was faster but would be a little harder if anybody but me or the boss had to reprogram . And the 2nd took a little longer but easier for any programer to make changes and not make a mistake.

Second thing was the way you pre wire . Sometimes to save wire or time he would make splices in attics (alarms) . And I we talked about if you had any but him on site wiring there could be mistakes .

Do you make things easier and simpler to understand so that when you hire new tech they can be more productive faster ?

If you don't you'll be working in the field until the day you die. 

I somehow came up with the idea when I started out wiring audio demo rooms for stores that I should wire things with the thought that anyone could come in and understand it, and it should be able to be useful for about five years (if I could see that far ahead -- not so easy now!).

This made my life much easier when I took on a moonlighting job on one of those sound rooms and found a chart I had put up on the wall the listed the wire colors of the multi-pair cables I had used four years before. That saved me hours!

Wire things so that anyone can figure it out. Don't put anything in that requires you to know about its specialness to understand it -- the electrician who changes hot wire color in a run is an example of the worst approach. And those splices? If you have to make them, well, first, you planned wrong! They should be in an obvious place or you should leave notes on the job. Notes can be lost; better to make no splices.

No splices. I've seen some whacky splice stuff in attics and not even, and it defies me as to why this is necessary.

We were at one project where the Living Room and Dining Room speakers are spliced together so they always play together and at the same volume. So if you watch TV in the Living Room, the Dining Room is playing the same material just as loud. Funny thing is, there is more than one zone still available on the amplifier. It would have cost all of maybe $10 to run another speaker wire up and make those independent, but someone (aka the alarm/"networking - hey let's put in a DLink router and daisy chain 8-port switches - guru") decided only one run was good enough and the two could be coupled together....forever. This is part of a $100k system.

Lets go a step further and never put anything they ever needs to be touched in an attic or crawlspace or impossible closet. Yeah im talking to you...the idiot who put all their lutron hardware in my clients attic making a 2 second service call an all day affair.

Document and label everything like you are never coming back to that job...so that you never have to go back to that job. We still have a few decade+ old systems that i have to service because no one else can figure out my hackstall. There used to be a lot more but luckily we have upgraded/cleaned them all up. I cant wait until we finally get rid of the remaining 3 so that i am no longer the only technician who can service the system.

Also, keep in mind, if you're any good at what you do, one day in 7 to 10 years you'll be replacing that awesome new system with something even more awesome. The more standard and flexible you keep your wiring today, the more options you'll have when you install the next one.

Keeping standards leads to efficiency, which should lead to profitability. You need to have most of your guys be able to make minor tweeks to a project without you or the owner being on hand.

Always remember everything you install will need to be upgraded at some point, so make it easy on yourself. As Stamp mentioned, do not stash electronics or splices where it is difficult to access. Someone will have to access it again. Nothing worse than wasting a day on a service call that should have taken an hour if someone had thought things through.