A mouse!

[pederito1]

I have used a track ball for years and am not comfortable with anything else. But you have to degrease the ball fairly often and clean the rollers.

[Workingman]

I do not like track balls as I have a 'dead' finger due to an accident.

I eventually settled for an A-tech six button mouse from Maplins for £13. It is big and clunky - just what my sausage fingers need.

[miasmum]

Oh, I wanted to get in first, just so I could say....

Where? There on the stair. Where on the stair? Right there