Where to save apps? Treo vs. 4G card....

[2sa]

As I have begun to accumilate applications, I need to start organizing how I store everything. I am a bit confused I guess but what in your opinion is the best storage filing method?

I have not had any trouble running anything in my current config but I am now looking at moving TCPMP from storage to the treo since I have more than one card with movies I want to watch. I have also begun to forget what tweaks and downloads I have done.

Currently I:
1. Download 95% of everything to the Desktop to a folder as a backup.
2. Drop the cab file into Treo My Documents folder on the desktop.
3. Install everything I can to my storage card.
4. Group what I can in file folders like: Mars Ware Folder>>Weather Panel Folder>>Added Themes.

Basically, what "should" go on the Treo and what "should" go on the card.

Please excuse my newbie questions, I am learning as fast as I can.