How do you completely disable the space-switching animations in OS X Yosemite? Is there a way to completely disable the animations when switching from one space to another in Yosemite? Everything I have found so far is for previous versions of OS X.

I have tried all of these without success:

defaults write com.apple.dock workspaces-swoosh-animation-off -bool YES
defaults write com.apple.dock expose-animation-duration -int 0; killall Dock
defaults write com.apple.dock space-animation-duration -int 0; killall Dock


I want to avoid installing a tool like TotalSpace if possible.
You can't. 

You can change the speed of switching into Mission Control. To do that in terminal Run:

defaults write com.apple.dock expose-animation-duration -int 0; killall Dock


To switch back to defaults run:

defaults delete com.apple.dock expose-animation-duration; killall Dock