Don't use sticky tape, use masking tape...Been told to sticky-tape
Thanks to all for all the replies. I'll be tackling this alone! (Gulp!)
In terms of rooms within house, top of house down - i.e first floor first etc.
Advice on getting clean edges when painting......
If you have no experience of painting edges like at the edge of the ceiling or around a door and you are not naturally artistically talented, then expect the first one to be not-so-perfect. Start with a room that you care least about - maybe the spare bedroom.
Use masking tape for all edges, but paint as if its not there. Dont slap on the paint and expect the rip off the masking tape and have a perfect edge.
Most masking tape will take off the paint underneath it if you are not careful, especially if it is fresh paint.
Use a small brush, dont overfill the brush with paint, work slowly, keep a damp cloth nearby at all times.
If you are naturally good at it- great. If not, take your time, you will improve.
I seen recently I think in Woodies or B&Q, some new edging bruses that are cut at a 45 Deg angle..I suppose to improve edge quality. Anybody try this yet and are they worth it?
I had a painter in recently and he insists on 3M masking tape, minimum 2" wide. I think it removes cleaner without leaving adhesive. Masking is a pain but has been said before preparation is key. Also, if you are competent, slightly loosen Plugs and switches and mask around these. Place old sheets or tape newspapers over the doors / windows to prevent splattering.
The paint is important and dont be tempted to use cheaper quality as undercoats.