Making a mess to make it tidy

This post will be all about hiding wires and pipes in the walls.  It's a fascinating topic, I know.

Short story - I bought a pretty powerful electric wall-chaser ("Chasing" is hiding stuff in walls) for 90 quid.  It would have cost 120 quid to hire a professional one with a vacuum, and the lady really recommended the vacuum.  Nah, buy a cheaper one, skip the vacuum.  It worked, but you wouldn't believe the mess it INSTANTLY makes.  Really noise, pretty hard to hold against the wall and move upwards, and instantly covers everything in sight with a huge dust cloud. Great fun.

And I ended up with big grooves in my walls to hide:

• The pipes for the concealed hand-shower at the end of the room
• The pipes for the overhead shower up the side of the room, next to the water source pipes
• The cables from the light switch area up to the ceiling, to conceal light cables, audio cables, and any other electrics.