Casino resort room and food deals can be found using the Internet and also tourist services located in the resort you want to visit.  When talking to a specific hotel or motel ask them if they offer any deals for more than one night or during the week when they are not so busy.  Large resorts like Vegas often have super specials listed on the Internet for those that are willing to make a reservation well in advance of the arrival date.

If you are willing to set through a pitch for a vacation club, you can get your room and some shows for free.  These vacation clubs use these incentives to gain access to prospective clients. 

Casinos with large room occupancy offer specials for those visiting during the week and at what are considered off times.  If there is no offer ask if there is one coming up or is there one you might qualify for in the near future.  Maybe you could shift your visit in order to save a great deal on this necessary expense.

Holiday seasons and weekends are difficult times to locate deals if you wait until these dates are just around the corner.  The only way to get a deal for these dates is to make your reservation well in advance.

If you are going to have an extended stay, look into renting a furnished condo for the month or longer.  If you and another couple are making a similar vacation time, this can save a great deal of money over renting from a hotel or motel.  Also you will probably save on the room tax as these rentals are considered in a different class than hotel and motel rooms.

Private residences are also open for longer stays as the people who own them are trying to use their property to make a little extra money.

If you are an RV person or a travel trailer owner, the places that rent to these owners are wiling to make deals for stays longer than a day or so.  It never hurts to ask what they have to offer or are they wiling to negotiate an arrangement.

All of this information is readily found on the Internet using any good search engine.  These searches are worthwhile as you can get a handle on what is being offered and at what price.  Most of these sites will have a special for longer stays.