For folks out there, like me, who like to do clean installs of OS X and require boot media to do so, Apple has apparently provided a nifty script in the OS X Mavericks installer.  It's one extra step compared to just writing InstallESD.dmg to a USB flash drive, I guess:

(quark:16:29)% cd /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources
(quark:16:29)% sudo ./createinstallmedia --volume /Volumes/Untitled --applicationpath "/Applications/Install OS X Mavericks.app" 
Password:
Ready to start.
To continue we need to erase the disk at /Volumes/Untitled.
If you wish to continue type (Y) then press return: Y
Erasing Disk: 0%... 10%... 20%...100%...
Copying installer files to disk...
Copy complete.
Making disk bootable...
Copying boot files...
Copy complete.
Done.
(quark:16:41)% df -h
Filesystem      Size   Used  Avail Capacity iused   ifree %iused  Mounted on
/dev/disk0s2    39Gi   17Gi   22Gi    44% 4500660 5775196   44%   /
devfs          189Ki  189Ki    0Bi   100%     658       0  100%   /dev
map -hosts       0Bi    0Bi    0Bi   100%       0       0  100%   /net
map auto_home    0Bi    0Bi    0Bi   100%       0       0  100%   /home
/dev/disk1s2   7.3Gi  5.0Gi  2.3Gi    68% 1307226  615788   68%   /Volumes/Install OS X Mavericks

Yep, it's nice and easy.  The installer takes up roughly 5.0 GiB of space, so an 8 GiB (or GB, in this instance) USB stick is probably required.

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