Best thing to use to keep a button pressed down on keyboard?

[DanTheMan]

I need to find something suitable to hold down a button on my keyboard overnight and nothing I've tried works.

Any ideas?

 

[DanTheMan]

AutoIT seems the best bet. I'd usually take the key out and stick some blu tac there but as it's a laptop, I don't fancy ruining the keys.

 

[DanTheMan]

Haha, loving some of the replies. It was for an online game which included a lot of grinding. Was going out and wanted to finish it off before I came back, I ended up plugging in a usb keyboard and doing the blu tac trick.