The clockworkmod APK
The clockworkmod RECOVERY
both use that same folder. Every time you flash a cyanogen Rom it had the apk installed by default. So that's where it's coming from.
In the folder back up the Nandroid folder or the one with data system recovery files (140-250mb) to your computer and then delete the whole dang folder if you do not use clockwork recovery.
As for titanium you can use the cloud storage feature and save another 500mb
carved via Ville
hammerhead / grouper / htc ville tmous one-s / otter -kindle fire /htc vision tmous g2 / htc dream - tmous g1
seriously, i love the Android community.