Just about to put the skirting on for my current job. The wall is (as ever) far from straight and bellies into about a 15mm dip in the centre of a 2m run, so there's a choice: either follow the wall with the risk of the deviation showing against the line of the tiles or set the skirting straight and leave a great big gap to fill.
So which is the lesser of these two evils in terms of anyone noticing it? (I know I'll notice it more than anyone else, you always do on your own jobs). Obviously the best thing is to have a straight wall but I shall have to like with it in this case....