I currently live in an old drafty farm house which in this cold winter weather is dry enough to dry salt in :) My last house was newer and less drafty and had a humidifier.

I've seen the proofing times rise dramatically and am trying to find ways to counter this. It's also tough to keep the temperature above  the 69 F or 20 C range too.

What methods have you found to lessen this kind of impact?

In the summer we swelter in humidity so that will be a completely different experience.