Thought I'd share my house rules here. Maybe some of you would want to adopt some/all of them.
(1) At the start of the game, before the first mythos card is drawn, every investigator has an encounter at his starting location. (Reason: During the game there is little time to have encounters at stable locations and some locations that never see encounters [velma's diner, river docks etc.] will finally have some action.)
(2) In the first area of an Other World, the investigator keeps drawing until he draws a card that matches his other world. In the second area he plays as normal. (reason is obvious: without this or a similar house rule all other worlds become another dimension.)
(3) Not sure if I'm gonna do this yet- Whenever a monster enters a vortex both the horror and deep one tracks raise by 1, regardless the town of the vortex (this greatly reduces dilution)
(4) After an investigator activates the special ability of a location, he has an encounter at that location. (reasoning is similar to 1's reasoning.)
You may share your own house rules as well.
Also regarding 4: Do you have any idea of to how to make Usula's (the explorer) ability unique? Because the way I play everyone has her ability, so what can I do? any ideas?
. But Rhan-Tegoth is evil.