On a related note: I do not know whether you have realised the the so called Swiss weekend savers have gone. They did not come out this and last week.
Last week I still thought it might be one of this "marketing messes" - just as the examples set out on thop. But the consistency seems to be that those are gone completely.

Which is somewhat OK now they introduced some new things - which make you wonder what they are:
"you have always the chance to get sometimes a CHF 199.- flight
(No one really understood what mean "always")

Or the "last minute" offers, which means you can book flights that leave between 2-4 weeks from now to certain destinations. (why these are "last minute" is good question - don't ask)

To put it in short: Swiss you get my personal freddie for the most confusing marketings communication!