Just as the title says, how often do you clear out your inbox? I've had my 3G for about a month (yes, I knew that a new one was likely, but I didn't feel like waiting), and I have about 5,500 texts (according to ATT.com) on my phone. Is it a good idea to periodically delete all these messages? Or is there no harm in keeping them? Also, are texts (and eventually MMS) counted under the orange "Other" catagory when looking at your storage space in iTunes? I have about 500 some MB of "Other" items on my phone, and I doubt that my apps are actually using that much space for their needs.