hmmmm maybe i should go back to 2 cans and a piece of string
I thought of that myself some days ::knocking my head against a wall::
Right now I'm testing an iPhone4, so I don't have an Android in front of me, so I'm going from memory (I can only test 1 phone at a time). If you go into Settings, there should be something about what apps are running; if you can't find it, go through each one and you will eventually find it. I was really surprised to see which ones are automatically turned on! So I disabled everything except the ones I needed. As I recall, I had to click (touch) 2 or 3 screens to get to this...it's well hidden. Of course you could always download the > 230 pdf pages of instruction manual if they didn't include the CD with your phone like they did to me.
But I figured it out on my own plus more.
You can also get rid of the widgets that your vendor sends you (if they do) onto your other homepage to try and get you to buy stuff but pressing and holding down the widget until it changes color, then drag it down to the trash can at the bottom of the screen (it changes to a red color).
I don't know how long you have your phone set before it goes to sleep, but that may help keep your battery last longer too. When I initially got my phone, I did the full discharge/charge and that seems to help, but some say you really don't need to do that. But definitely turning off unneeded apps will help. I guess I'll have to get my hands on another Android if you need help. Let me know.