One sleepless night I ran numbers on fixed versus variable for our renewal
https://scotttipsblog.raidersfanteamshop.com/why-we-chose-a-toronto-mortgage-broker-for-a-brampton-purchase-and-how-pre-approval-worked
One sleepless night I ran numbers on fixed versus variable for our renewal, then bookmarked a broker's spreadsheet that made the math clearer.