Im in Vancouver too!
Ya, same situation. I use Chevron 94 all season and from day 1. No issue with ethanol there.
I add 1 bottle REDLINE S-1 fuel cleaner to full tank prior to storage.
Change engine oil&filter (RL 5w30) before storage.
Hook up Battery tender.
Place on Quick Jack.
Drive normally in spring.
(it doesn't hurt to drive gently, do it if it makes you sleep better)