I picked up one of these little portable generators from Canadian Tire.
My advice to everyone who plans to have a tank long term is to definitely get one. DO NOT wait until you NEED one to get one. I got extremely lucky but chances are that if you're out looking for one when you NEED one, there are probably dozens if not hundreds of people doing the exact same thing! It wasn't that expensive either, $399 for a 1200/1500 watt generator. That was a small price to pay compared to the cost of replacing my entire tank!
Something else that helped me recently was a 1200watt UPS battery backup. Also very handy and recommended.