We haven't the option of outside....far NE of Scotland, more or less from October to March
This week in particular has been very grim, not really light till 9 am, getting dark by 3.30 (pitch black at 4.30 one day!) It's just an utter waste of time to drag the laundry from the machine onto the line!
AND drying laundry on rads and airers is very bad for increasing the damp in houses. Plus despite all this dank weather it's not cold enough to warrant the heating so that counterbalances the dryer usage imo.