How should I go about printing easily removable rafts?
As comments suggest,  a raft is not all that popular.  Consider using a brim/skirt instead.  I've had excellent luck with a 4-mm skirt, printing onto blue painter's tape. (Unless you consider it bad luck when I have a devil of a time getting some parts to release :-) ).   Skirts are trivial to cut free from the object.

In a similar vein, if you run into trouble getting support structures to pop off the object cleanly, try to make them as thin-walled as possible.