I use Silva key chain compass. It has nothing, but compass and carbine to link with keys. Very convenient and I used it even during my last trip to Kazakhstan. In general, it is simple, cheap, reliable and looks good. It covered all my requirements, except one occasion. I also have Silva Ranger with mirror, but I bought it mainly as memory about my military service in artillery (it looked like artillery compass, but different scale). I used it only once when I had to find direction of a route in Kazakhstan with good precision. I think my keychain compass could do the job as well, but Ranger gave me good precision quicker. :super:
Regards,