If you would like to list the spaces on your Home page in a different order, you can set it up just the way you want. Just drag and drop! On the left sidebar, under Spaces, left-click (and hold) on the name of the space you want to re-order. Drag it to the position you want and release the click. The space will now be set in the spot you want it.
Tip: Mark a space as a favorite to have it automatically jump to the top of your list.