How to avoid that "that that" that is so very awkward

US English usage tends to replace the use of "which/who/whom" with "that".

Normal usage:

I believe this is the reason which caused her to lose her mind.

US tendency:

I believe this is the reason that caused her to lose her mind.

Normal usage:

This is the man who has taken my parking spot.

US tendency:

This is the man that has taken my parking spot.

To exact revenge on US tendency for over-use (and frequently inappropriate use) of "that", we should look for opportunities to replace "that" with any other word. It is frustrating isn't it, when even Microsoft Word compels you to replace your "whiches" with "thats"? Here, revenge of the whiches ...

Evidential decision theory recommends taking the action which you expect will yield the highest utility, given that such action has been taken.