Stretch as long as it remains painless.
As Marinera said, you should then be able to stretch further after 30-40 minutes.
I would just add: Don’t hesitate to twist it on every side every now and then.
It’s gonna pull the skin and everything that shouldn’t be outside the fulcrum.
It might loosen the traction up and you’ll be able to pull with more efficiency.
I’ve also read somewhere that swollen head brings better results. And that’s what I’m always doing since then.
That was painful on the first runs, but I got use to it and it doesn’t hurt anymore.
At first, going over 45 minutes was an achievement by itself. But now I can go for 3 hours easy.
But always listen to your body, don’t mess up.. The strap that I use, allows me to slacken the tension more precisely
In a fingertip so I can make sure that the circulation stays appropriate and bearable. Which might not be your case.
As for living around:
Walking with the device tilt up was pretty uncomfortable in my case.
So I just wander around the house in baggy shorts with the device pointing down.
Baggy shorts and Extenders are good friends.. :)
If I have to get back on my computer, I just remove my shorts in a second and sit without any constraint.
If I need anything on the place, then I just put my shorts back on and put the extender down along my leg and there I go !