For my broadband, I use a BT Home Hub. On the whole, it’s been great, but one thing that has bugged me a little is on the My Devices admin screen.
Take a look at the small window they give you to view the device details, at most you can see only four devices listed.

I reckoned that I could something about that, so dug into the HTML and CSS code on the Hub Manager page.
After a little jiggery-pokery, I settled on changing the #device_obj_box ID height to 650 pixels:
#device_obj_box {
height: 650px !important;
}
I installed the Stylish extension to Google Chrome and created a new style for the URL of my Hub Manager: 192.168.1.254, dropped in that CSS code and gave it a meaningful name.
In Stylish, it now looks like this:

And now the My Devices list is a much more user-friendly list where I can view at least 11 devices at once.

While I was at it, I also cleared out no fewer than 37 devices marked as ‘unknown’ … mostly guests or old devices. But now I know exactly what is connecting to my home network.