Tips on getting power injection cables to locations around the house for strings

[coops]

See attached picture.
There is a 24V -> 5V DC/DC and smart receiver at (1), (2), (3). At each, I use two of the four ports to go in each direction heading away from the smart receiver. Power is connected at the start and end of each arrow.
Longest single run is across the front of the garage. This is 406 pixels. Greatest number of pixels on a single port is 504, starting at (2) and heading to the left.

I actually didn't even realise you could buy icicles like that either, "how do people run these, must take forever to make - oh doh". Second mistake was showing wifey...