Sprint HTC Hero :: Internal Memory Disappearing - How Much Do You Have?

My internal memory has a parasite that is slowly eating it away. I have figured out that when internal memory gets below 16MB it turns on the little warning in the status bar. So, this is how I'm checking my internal memory so everyone that takes their time to respond to me is using the same method. I got to Settings> SD&Phone Storage, at the bottom of the screen that comes up is the "Internal Phone Storage" Available space and mine says 15.84MB. Today I installed a highly rated memory manager from the Market and it didn't help at all. So my first question is How much "internal Phone Storage" do you have left?

Now my second question is when you got to Settings> Applications> Manage Applications> and scroll way down to "Mail - HTC Corporation" and click on that. Now look at the storage. Mine says 15.64 MB Total. Which breaks down there to Application 2.59MB and Data at 13.05MB. Clearly my Mail program is holding the biggest chunk of memory. But I want to know how this compares to everyone else's. If this is true then it would account for the parasitic growth or loss of my memory.

So if I'm way different then this will start a good discussion on what to do about this problem. Just let me say at this point that I delete all email once I have read it. I delete the sent, draft and Trash folders too. I also go into the SD Card and delete everything that is in the .Mail folder too. So if my phone is storing old email now I have to find out where and delete it.........

I so appreciate everyone weighing in on this perplexing problem.