As a young fellow I would string a wire out the window across a few nails on the outside wall of our apt and hope for the best. I used a Phillips table radio with AM and 2 SW bands. I didn't take note of what I was listening to at the time I just enjoyed the sound of far away signals. What a great way to escape reality.
As the years went on, I found stations I liked; for NEWS and current affairs and stuck to them. (apartments are difficult places to DX from.)
As an adult we lived in an apartment for about 15 years where I was permitted by the care taker to run a long wire antenna along the roof on 5ft mast posts the length of the building roof. That was the best DXing situation I had.
This evening I continued the DX theme as i searched the web and came across this site with software that might be of interest to some who read RW/CRN.
"DXtreme Software" is the site name; http://www.dxtreme.com/
There are two software programs that look interesting, along with other links on the site.
1)Logging Software for Amateur Radio Operators: DXtreme Station Log Multimedia Edition™ Version 8.0
2)Logging Software for Radio Monitoring Enthusiasts: DXtreme Reception Log Advanced Edition™