Good Refrigerator Lock?

I never thought of bike lock idea when I needed something, but that does seem like it would work.
What I did was take an old thin dish towel, long enough to go thru both handles, and tie together. Works great for cupboards too if you have those type of handles.

Use a bike lock or something along those lines. It would probably work better the nthose plastic locks. One of those on my cabinet broke by having the door pulled on.

I have no idea whether this would work on a side-by-side, but we have friends who, on their traditional refrigerator, simply removed the handles. Their kids could not grasp the refrigerator from the side with enough force to open it, but it was simple enough for the parents to work it without the additional level of the handle.

I've never locked our refrigerator but I did a search and this is what I came up with that may work.

We use an older version of this in our bathroom and find that they are easy to operate. Maybe it'll work in our case?
http://www.toysrus.com/product/index.jsp?productId=2919697

We use this for our drawers and maybe it'll work for your fridge. It's also fairly easy to operate.
http://www.toysrus.com/product/index.jsp?productId=2969585

I second the bike lock suggestion. We use one on our fridge and it works great. Use the kind that is a cable lock with a simple combination. Good luck.