Here's how to quickly and easily remove a window screens from the outside of the house.
Get a nice drywall trowel: https://www.homedepot.com/s/trowel?NC...

Screen removal from the outside can save you hours a year in your window cleaning business.

If this saves you 15 minutes per job and you do 2 jobs a day, that means you save 150 minutes or 2.5 hours a week. That's over 125 hours a year you save just from having this one tool in your window cleaning bucket!