testing is part of the install process. how else are you meant to know you installed something correctly? how do you know the cable is not faulty?
who ever told you that testing is not part of the install process has their head up their own arse.
Because you can easily damage cable, if you crimp it badly it isn't going to work, so you'll test it after cutting the cable to size and crimping. Then again after it is in situation to make sure you haven't cracked any of the cable, usually a small chance of this happening, but it is better you find out before you redecorate than after. This is even more important now plumbing the building with fibre optic cable is becoming popular.
We use a cable tester at work which can detect if there is noise on the line cause by ****ing up somewhere, but if you want to save many pounds for the testing kit, just plug it in and see if it works.
I had powerline ages ago. It was crap. Fine for basic browsing but online gaming, voip, teamspeak, large file downloads, would create so many collisions, interference, all that crap...was unusable.
As for last purchase, i hate speedbumps sticker and a dubway sticker.
That's in Zagreb, our capital... And I live 125km away from it in a "town" (it's more like a pile of shit), so you need to add the transport prices, and like 10% profit for the store my bro bought it in... Also, it was like a year ago when he bought it so the price went down a bit.
Me too...
Well, what could be expensive on a keyboard? (by keyboard, I mean a normal keyboard like on the pic above, not some crazy spaceship keyboard with screens and shit...)