Building But Better is a little mod made to make positioning and rotation less frustrating. It does this by adding two functions:

1. Lock/Unlock by pressing U. When locked, ghosts won't move with your mouse, allowing you to see how they're positioned and rotate accordingly.
2. Reset Rotation by pressing F2. This resets the ghost's rotation to 0 degrees. This applies to the world, not the location you're placing it on. It won't align perfectly with foundations and such by doing this.

All keys can be reassigned in the Settings menu in ModAPI for this mod.
I intend to add new functions as they occur to me.