Windows 7 Cleanup Disk Usage

I have my desktop operating system on a 90 GB SSD (solid state drive). The SSD performs quite well. Over time, the system drive can accumulate a lot of extra stuff. Today, I was down to less than 10 GB of free space. I found a couple of links that were helpful:

http://forum.crucial.com/t5/Solid-State-Drives-SSD/Random-space-saving-tip-Windows-installer-cache/td-p/51150

http://www.hanselman.com/blog/GuideToFreeingUpDiskSpaceUnderWindows7.aspx

I moved my C:\Windows\Installer folder to E:\Windows\Installer by doing the following:

1. Using Windows Explorer, cut and paste from C:\Windows to E:\Windows
2. Using Command prompt (Run as Administrator), execute the following commands
1. C:
2. CD \
3. CD Windows
4. mklink /d Installer E:\Windows\Installer

That cleared up close to 10 GB of space.

Secondly, I turned off hibernate by executing the following command (in the same Command prompt):

powercfg -h off

That cleared up another 8 GB or so.