[TimJFowler]

For sealing around a door, I like bronze spring weatherstripping. This is the weatherstrip that comes in a roll, you nail it do the door jamb, then run a screwdriver along a seam and it springs out to seal against the door. The bronze is very durable and can be adjusted for different gaps by re-scoring the seam with a screwdriver. Use a pair of tin snips to cut around deadbolts and locks.

The foam and vinyl weatherstripping I've tried wears out and become less springy over time. I've had bronze weatherstrip on my front door for 6+ years and it works great.

FWIW,
Tim