I feel another wiki article coming on, and this could be a really handy one.
We have done loads of stuff on the engineering side of electrical installations, but very little on the practical side. This seems a bit unbalanced really when you think that the design and testing elements of an electrical system only represent a small part of the practical knowledge and experience required to actually do jobs like a house rewire.
So can we collect tips and techniques for the practical stuff? For example I am thinking of how you:
Chase walls, and get past things like coving and skirtings without wrecking the place.
Lift floors of various types
Access via ceilings
Pull cables - cable snakes, fiberglass rods, bits of capping off trunking etc.
Handy cable routing tricks
Supporting cables on vertical drops, and under floor voids.
What is your favourite technique for chopping out walls for backboxes?
Handy tools, and test gear you could not do without.