What’s worked for us is focusing on the basics and not overthinking it. Insulating exposed pipes made a bigger difference than I expected, especially in the garage and under the house. We also leave a tap dripping slightly during the coldest nights and keep cabinet doors open where plumbing runs along outside walls. I found some good local advice by checking Plumbers in Campbell River, BC before winter, just to see what services they recommend for prep. A little effort upfront saved us from panic later.