I am looking for a wheeled organizer that will allow me to store primarily Cat6 and HDMI cables from 1' to 6'. I work mostly in NYC buildings and weight and size is an issue. My tools are in a Dewalt TSTAK system but they are not practical for just cables. I'm looking for something like this but a bit bigger and more industrial looking:

[Link: amazon.com]

What do you guys use?

Since you already have Dewalt TSAK. This [Link: dewalt.com] got to be most appropriate one.

Permanently burrow a shopping cart

How about this?
[Link: scrrra.org]

KOT

Large Gym bags are great.

Also, carry on luggage.

Really expensive but I really like it.

You can use a mixture of drawer sizes to keep cable lengths separate. Even if you cram a lot of cables in a container, you can press the lid down and lock it. It's well built. The drawers lock in place when pushed in so they aren't always sliding out at the wrong time.

[Link: festoolusa.com]

Looks like a lot of wasted space

A couple of those deep boxes that Indigo recommended, some bungees and a really good folding hand truck. And if you see someone like that running around NYC it is probably me :)

I just went through rethinking this for my business. When working in the suburbs, you can always run out to a well stocked truck.

But, in the city, when "running out to the truck" isn't so simple, how do you put together a kit of parts that will meet your needs a large percentage of the time without having to carry half your truck into the apartment?

As far as patch cables go, I haven't yet found anything I like better than rugged totes (sometimes marketed as soft tool bags:

[Link: homedepot.com]

What they lack in sorting, they make up for in lightness, ruggedness and portability.

[Link: festools-online.com]

The new redesigned sortainers would be your ticket! Paired with this:
[Link: festools-online.com]

This really is a prime example of where tstacks just fall flat. There is a reason festool/Tanos (systainers) cost what they do. There just is not a comparison!

I like zipper bags for parts & patch cables. They take up less space and weigh less than plastic boxes and they don't scratch furniture.

I normally order bulk parts and cables for a big project and just keep it all in a cardboard box until im done trimming out. Then i transfer any extras to my zipper bags. I use those for service calls and smaller projects until the next big job. Rinse and repeat.

Handcart and hard sided totes.

While I don't do many urban jobs, when I do I use some Rubbermaid Action Packer totes and a handcart.

No way would I risk rolling a cart that just went up a driveway ramp, across a sidewalk, etc onto a client's floor.

Get to job, set down blanket in staging area and carry totes from entry way to work area. Depending on the building I will leave the cart in the hall or set it on cardboard inside the doorway.

Other then racks with clean, fine floor casters I try to never, ever roll anything on a clients floor.