mouse mover jiggler recommendations

[sphere]

I am in need of a standalone/portable app that I can run on a system that will keep system from going to sleep and applications from timing out.

I am curious if anyone has any experience with an application they would recommend
A list of contenders

[Shades]

Caffeine - used that a lot myself. It is free, small and portable.

[x16wda]

I know I had Caffeine on a short list too. There was another one I considered, but I don't recall the name - but it wasn't on the list at Sphere's link.

[sphere]

Thank you, I will look at Caffeine! 

[sphere]

I actually wanted to give a shout out.  Noise was given birth here by Skrommel.
Done in AHK