I have a list of 50 addresses for letters I have to send, and in LaTeX I am trying to create labels to stick on envelopes. I have a clear A4 sheet for printing (e.g. 10x2 fields) something similar as in the figure below, so I also have to take care of the geometry.
I don't need to generate bar codes like for the US Postal Service, and similar standards... I had seen the envlab package but it doesn't seem to fulfil my needs.