I have a few what I call happy songs. Songs that never fail to get me in a good mood and songs I put on when I know I need to clean and these songs get me on my feet.

Tenderness - General Public
Walking on Sunshine - Katrina & the Waves
No Such Thing - John Mayer
You Get what you Give - New Order
Lovin Each Day - Ronan Keating

There's a few more, but I can't remember right now.