Several times I have had to clone the good track from a stereo recording because the other track was trashed with noise.
Easy enough but the result is a dead sounding mono and this is really displeasing to the ear.
Is there an effect that can ad some depth for a sudo stereo?
Yes, but to find it in a search you need to spell pseudo correctly 
http://wiki.audacityteam.org/wiki/Nyquist_Effect_Plug-ins#Pseudo-Stereo
Instructions for installing:
http://wiki.audacityteam.org/wiki/Download_Nyquist_Plugins#install
Hey gimme a break; Linux does strange things to you.
Thanks, will give it a try.
Hey, it sounds great!
I’m after a dry studio like sound and so it took some tweaking but with Delay at 10% and effect mix at 50% it really does have a nice stereo sound now.
Another addition to my bag of tricks. 
This effect should be included with Audacity.