Is there a way to lock tochpad??

[cairnsx5]

Hello, Is there anyway to lock the touchpad while you are on the phone?? Almost everytime i either answer the phone or at some point while i am on the phone my cheek hits the end button, or some other button. I love my droid, except for that i have been tempted to smash it because of it. PLEASE any help would be appreciated.

 

[cairnsx5]

also when i want to send a text i start to type the name and it doesnt pull it up, so then i have to go look the number up write it down then type it in, is there an easier way?/