Remove Databases (MySQL/PostgreSQL/Redis/Memcached)
We are hosting our database server separately from the box that serves up the PHP side of things. The latest version of MySQL pulls a huge amount of RAM and did some other likely overkill cleanup at the same time. Maybe it is just me, but I like dedicated VMs for single purpose so you can drop/recreate/resize them without thinking about anything besides the single purpose of what it is doing. Please ping me @brian_jorden on twitter if you see any issues with this as this site doesn't seem to notify me about comments.