Trying to remember a scifi novel set in the future where you can load your personality into a "golem" and later download its experiences so you get all the memories. So your real body can go to the gym for exercise, and you can send golems to the library to study, and get more done in the same time. I think the plot was about a detective investigating a murder.
I am pretty sure the word "golem" was used to describe the copy things but not entirely.
I didn't actually read this novel, just read a description of it...
I think it was published somewhere in 2000-2010.