It's funny that you described the bottle as "Costco sized" because I would suggest a cleaner that I got at Costco. "Oil Eater Cleaner Degreaser".
We bought a house that had caked on oil/grease-i-ness on the wooden kitchen cupboards. All the soaps I tried didn't work and I didn't want to destroy the wood in the process. But when I touched them I could feel the gunk. I tried the "Oil Eater Cleaner" and it worked great!
As for the crazy ants; I just sprinkled DE (diatamacious earth) along the edges of cupboards where they seem to like to travel and then sprayed that ORTHO Home Defense (again purchased at Costco altho you can get other places) under the stove, refrigerator and back of sink around pipes. (it can shoot straight stream to get back underneath where I can't reach and is out of the way from anyone touching) Seems to have backed them off. I was horrified last night when I HAD TO leave dinner dishes out and couldn't clean up til I got back in the morning. I expected to see hundreds of ants and there wasn't a one!
(I will not continue to tempt them with our leftovers, but it was nice to be free of them for now)
J., Byron Center, MI