I just find it easier to remove and reinsert the battery. No need to find a paperclip. Make sure that the proper kind of reset is the one that has the hourglass for 2 minutes -- not 15 seconds. (Under OS4, you don't get a full reboot anymore via the
three-finger salute, unless you do it twice, with a 15 second delay in between)
You don't lose data if you remove and reinsert the battery. Just make sure your email drafts are "Saved" first, if you were in the middle of composing an email and you need to reboot.