KSP throttle off after set time
Solution 1:
I use MechJeb for this extensively. Once I was able to "master" the launching and orbit, and it started to become tedious, MechJeb did an extremely efficient job of getting into orbit and performing orbital transfers.
One thing of note, if you're playing on Career mode, the MechJeb parts that allow this functionality need to be unlocked via the science tree. (If you would otherwise feel guilt about using a mod for this, having to earn it may alleviate said guilt.) :)