HTC Hero :: Conserving The Battery Charge Daily?

I have significantly improved my battery life over the past few days by changing two simple settings....email and wifi.

Email first -
I have accounts set up on the Hero with Yahoo, GMail and Hotmail. When I looked, the Yahoo was checking every 15 minutes. GMail every hour and Hotmail once per day. As I am often in front of a PC with email open, this seemed like overkill.

So, I altered all three accounts to check only once each day automatically.

I also switch my wifi connection on as soon as I get home and leave it connected until I go to bed. I've now started turning this off when I'm not actively using it.

Here's my non-scientific results:
Getting up at 6:30am each day and using the Hero as normal before altering these settings would get the battery charge down to 25% at best by 11pm when I put it back on charge. It would often be less than 25%.

After changing the settings as above, my battery usually stays over 85% until probably early evening. My usage goes up when I get home from work quite a bit though and yet by 11pm, I still haven't seen the charge less than 65% yet.