Welcome to the World of Palm!
To close an application, just open another application or go to any category, such as "Main" or "All." If you're attaching a Note to any entry, such as in Calendar, Tasks, or Memo, be sure to tap the "Done" button to save that note. Then, just open another application. Normally, there is no dedicated "Save" command as in Windows.
On the T5, the initial charge is supposed to be for 3 hours. After that, the T5 User's Manual suggests charging for 1/2 hour every day. A lot will depend on how much you use your T5, which features you activate (e.g. having Bluetooth active increases battery draw), and how bright you set your screen lumination. You'll have to keep an eye on your battery level icon at the top of your Main Screen to determine how often you should charge your T5.. ... I charge my T3 every 3-4 days for about 15-30 minutes in the cradle and my Treo 650, which is my primary Palm device, daily for about the same amount of time. The Treo is charged each morning before I head off to work because I also perform a HotSync, which also retrieves email and updates my AvantGo. ... Hope this helps.
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