I've a 32mile commute and I often have 4/5 miles left when I return home.
Don't drive at 70mph they whole way, this zapps the battery.
Take advantage of long down hill slopes to recharge/get free miles.
Don't use cruise control, this doesn't use regen.
If your journey is longer than 32 miles, use Auto mode until your within EV range on your return journey.
Using these rules I've only used 2 tanks of fuel in the first 2100 miles.