"Product Recommendation: Copy Feature for Estimates"
One of the functions of the estimate is the "copy" option in which you can just automatically copy the previous job details in creating your estimate.
This can be done by clicking the pencil to the left of any estimate.
It will open up to the edit estimate window and you just need to tick the radio button "copy".
You can just then insert a different date (ie: the date you're copying), make whatever job type/pricing changes to be made and click the "update" button at the bottom and you're all set.
Best,