That's funny bill -- last week I was visiting an old buddy in Tucson and he conned me into help him (well really doing it since he knows nothing and just stood and watched) connect his wife's PC to Ethernet.
None of his cables had been finished -- just stuffed in the wall without jacks. As it turned out her cable didn't even go to his patch panel, there was a bundle of cable just cut off (with about 6 inches left) in a cabinet in the adjacent room. They had switched electrical contractors in the middle of construction years earlier and things were not good.
After a bit of a scare (the first 4 cables I looked at were CAT3) I found the CAT5e cable that went to her office with a tester. So I put a female adapter on that end too, and then had to smash through a common but difficult offset wall that of course had drywall over 1/2 inch plywood and more studs that I had ever seen before in mass bunches. I got the job done over about 3 hours (for free) but the hard part was keeping his wife out of the area until I repaired the drywall and cleaned up with the shopvac -- she would have totally freaked out at the square foot holes needed to do the access.
That is the first cable I've personally run in quite a while, I always hire someone to crawl through attics and do the hard work now, and then just finish off the line ends and so forth. That reminded me that I used to be a lot younger.