Sent History - let me have a record of every time an estimate is sent, resent, and viewed.

“Also another feature you should have a button there that if we send an estimate and we don't hear from them, we should be able to just resend it without editing it and then resending it. We should be able to click if we haven't heard from them resend and then it should tell us the date we sent it the date we resent it so everybody knows they've received it two or three times.”