Hi Perfectly Clean
Must admit, Im a bit shy...Not very good on the door knocking.
The courage comes with time. Just remember they are people just like you and what is the worst that can happen? That someone is rude or says no.
If someone knocked on your door and asked about window cleaning what would you say? What you may say is simply what they may say when you call on them.
It's a statistic thing, for a certain amount of 'no's' you get one 'yes'.
Give it a go just for a few houses at a time. Don't overload your emotions. Choose 3 or 4 houses that you feel safe to try and give it a go.
Shut your eyes and say to your self 'just do it' and don't think about it, just do it.
Pretend to yourself you do it all the time. I just say when they open the door is 'Sorry to bother you but do you need a window cleaner'. Plain and simple. Some people are so nice and friendly. Some even say 'yes'.
I found it a nightmare to start with and even now I sometimes have to remind myself but once I'm on a roll, I keep going but not to begin with.
Give it a go. You owe it to yourself to find out what it's like to do that anyway just so as you can say you've done that.
Cheers