Will be in Bangalore for a few days on business, and would like to squeeze in some sightseeing of Mysore. Any recommendations on pre-packaged day or overnight trips from Bangalore?

I know that many of you will tell me to just hire a car, etc., but let me say that I've done this sort of thing and this is not what I want to do in this case. My time is short and I don't want to bother with making my own arrangements/itineraries. TIA.