the mms directory can fill up pretty quick since the iPhone saves all mms files, sent or received, in one folder. as you can imagine this fills up quick esp if you're like me and send videos. I clear my directory every so often and average about 1gb each clear. is there any tweak in Cydia that can automatically do this?

if anyone's curious, the mms directory is
var/mobile/Library/SMS/Attachments/