Davej wrote:

I live in an old house. Much of the weatherstripping on the doors is
felt or springy metal. At the local Lowes / HD all you can find is the
self-adhesive foam strips which last about one year -- or they have
the better looking stuff which slides into a track -- I suppose this
is for the tracks in the frame of a sliding glass door. What would you
consider to be the optimum weatherstripping for an exterior wooden
door and where do you buy it? Thanks.

Plastic fin seal, AKA V-seal. It's a strip of plastic you fold down
the middle and then stick to the door frame. Try to keep it
absolutely straight or there will be ripples where it fits against the
door.
I think Frost King and M-D Building Products make it, but Ace Hardware
may have its own brand.

M-D Building Products 3525 V-Flex:

http://www.amazon.com/M-D-Building-P...340037&sr=1-19

There are 3 kinds of foam weatherstripping. Open cell is usually
urethane, while closed cell is either vinyl or EPDM rubber. The
latter is virtually impervious to ozone and UV rays, and is often
labelled for really cold weather.