For the spaghetti nightmare management, I find having tesa tape and braided sleeving on hand to really help.
Here is what I use:
Amazon.com: 25ft - 1/2 inch PET Expandable Braided Sleeving – Black – Alex Tech braided cable sleeve : Electronics
To cut the sleeving, I have a butane powered soldering iron, which I set on my workbench with it lit. Then I stick my exacto knife into the flame, and heat it up. Then once it's nice and hot (glowing red), I cut the sleeving. This melts the end while cutting it, so it doesn't fray after being cut to length.
Here is what I use:
Amazon.com: 25ft - 1/2 inch PET Expandable Braided Sleeving – Black – Alex Tech braided cable sleeve : Electronics
To cut the sleeving, I have a butane powered soldering iron, which I set on my workbench with it lit. Then I stick my exacto knife into the flame, and heat it up. Then once it's nice and hot (glowing red), I cut the sleeving. This melts the end while cutting it, so it doesn't fray after being cut to length.