I still collect 1 round of about 60 houses. All in 1 area, very compact 3 and 4 bed detached.
It gets me in front of the customer to upsell other services, fascia/soffitt/gutter cleans and conservatory cleans. Very profitable on these particular houses. These customers are out at work 95% of the time so if I didn't collect I wouldn't see them.
Works for me.