Beth, Try getting a hold of your states Area Agency on Aging. They can help getting you information. The HomeCare program is set up to help families keep their relatives at home. They can offer homemaking services which will go to the store for your father or help him with his house work. Some services will also help with personal care ( bath ).
There is also a Family CareGivers program which offers support groups for yourself dealing with everything going on. Sometimes it's just helpful to talk with others going through the same thing you are. They can also offer respite services were they have someone sit with your father for you to get out or away for awhile.
Might also look into Home Delivered Meals or also called meals on wheels. That would give him a noon meals if he's at home.
Just look up the website for Area Agency on Aging for your state. If you have any questions or need some help find out who to talk to just send a PM. I work for the state of Ky's AAA. So I don't mind looking up more information for ya if you need.
Lisa
http://www.bradd.org/Aging1/index.asp
This website also has a link to the national aging website. Which is under the U.S. Department of Health and Human Services.