I asked my husband to make a shelf so I could ride my exercise bike and be on the computer at the same time. You can guess who quickly moved in! The cats love the sunny window location.
It was a tricky design, because I wanted to be able to remove it to shut the curtains at night.
It simply slides off to remove, but it is very sturdy. It hooks under the window and has a support underneath.
It actually works great for my laptop too!