On Sunday, December 28, 2014 5:01:43 PM UTC-5, Sasquatch Jones wrote:
Here's a mediocre sketch for anyone who doesn't have access to binary groups....

Viewed sketch with courier or other fixed font:

A = Cable from pole to be fastened here on house
AB = Cable to run under eaves, fastened to inside of fascia board
B = Cable interconnection box high under eaves. New hole for cable near box to enter through garage and run along wall near ceiling
C = Cable to drop down and enter office thru new hole in garage/office wall
o = New cable
= : Wall
| : Wall
. : Empty space

==================================
|................|...............|
|...GARAGE.......|.....OFFICE....|
|...............C|...............|
|..............oo|oo.PC..........|
|..............o.|...............|
|..............o.|...............|
|..............o.|================
|..............o.|...............|
|..............o.|...............|
|..............o.|...............|
|..............o.|....ROOM.......|
|..............o.|...............|
|..............o.|...............|
|..............o.|================
|..............o.|B..............A
|..............o-|oooooooooooooooo
|................|
==================

.............OUTSIDE..............

One aspect that no one has mentioned so far is that per NEC, all the
services are supposed to be grounded at the same point. Which is to
say the electric, landline phone, cable, etc are all supposed to come
into the building at the same point. Years ago, they would do it anywhere
and just use a cold water pipe for ground. You might be able to convince
the installers to do it otherwise, but single point grounding is code
and what they do with new installs here. There is good reason for it,
which is to eliminate potential differences during lightning and similar
surges.

Other than that, how to best run the cable, without being there, it's
not possible to say. Generally, it's not that particular. You just
want to run it as easy as possible and second shorter runs are better.
I didn't see anything in the plan as to where the router is going,
wireless router?, where PCs that are to be ethernet connected would be,
etc.