Copper Golem pathing passed each other:

Presently, If two golems meet each other in a narrow space, they often just try to path through each other and fail.  

I would propose that they either have a way to pass by (squeeze / side-step), or a slightly more interesting thing may be to allow them to stand on the head of another, and then step off the other side.  

This could also have some interesting side-effects for them reaching chests but not the main purpose of this.