Cats will explore new places including any accessable cabinets. Using a spray bottle should be enough to let them know that you do not want them in there. If you can shut your cabinet doors using a small latch on the inside, flush enough so they cannot get their claws in back of the cabinet door, this should be enough to keep them out of your cabinets. Aside from this, you may have to place a wedge in the handles. I have two large cabinets, one is full of dishes and the other is full of dry food, (crackers, crunchies, pasta, and the like) I have caught a few of my cats in them -whenever I do not close the doors properly. One of the biggest problems is keeping my furkids out of my refrigerator whenever I open the door. :?