Cat.6 RJ-45 Giga-Speed Ultra Flat LAN Network Cable (3M)

Pros: No-snags work but you can also remove the connector from the jack without pliers. Flat and very flexible. Easy to move. Cable is recognized as 1000Mbps!!!

Cons: No-snags are a bit higher than on many.

Other: I will be recycling the other stiff and hard to use cables.

Pros: It's definitely a great spare cable if you need one. It's also a good permanent cable if you need one.
Build quality is great, and the no-snag boots on the ends feel solid.
Solid connection to ethernet jacks.

Cons: The price is my only major complaint, but then again I don't know how much it costs to manufacture flat cables.
A similar-length Cat5e or even Cat6 cable costs less.

Other: If you want to run the cable through a door or window, I'd suggest getting this or a shorter one of these and putting ethernet couplers on each end, then completing the run with REAL ethernet cable. That, of course, depends on how long your run needs to be. This can stand on its own as an ethernet link but you definitely don't want to go flat for long distances.