xfce=a new lease of life for my not-so-old laptop.

Yes kde4 made my 64bit, 4GB mem, Core2 Duo 2.4GHz (kubuntu 9.04) laptop cry and die on me. For some reason it made X use a lot more memory than I would like.
So a couple of weeks ago I tried out xfce and I can be productive on it now. Although I miss a lot of features, at least I'm not running out of memory so easily and it does not crash so often anymore.
It may not strictly be Kde's fault, but by experimentation I found that xfce is better for me at the moment.