Tutorial: CAD Tutorial, 6 Trim tips every student MUST know

"Number 6 will make you cry."
#clickbaittitle

Summary

1.  Select all trim (tr; <space>; <space>;)
2.  Undo in trim (u;)
3.  Fence Trim (tr; <space>; <space>; f;)
4.  Window Polygon Trim (tr; wp; <space>; {select}; <space>;)
5.  Extend in Trim (<hold shift>) [You can also hold shift in the extend command to trim]
6.  Extrim (extrim; <select region>; <click either side>)

Thanks ya'll!