Mainstream science has, for some reason, largely ignored this phenomena and when you can get a scientist to comment on it they'll typically tell you something like, "That's completely impossible. The only real problem here is that you need more storage space so stop pestering me and go buy a shed." Why they're choosing to ignore such a large body of evidence is uncertain, but those scientists are at least right about how you would go about solving your problem. This Arrow Estator 10 X 14 Outdoor Storage Shed can help you get some of those things safely stored and out of your garage before the situation starts to become truly dangerous.
Having the right equipment is essential for dealing with this type of gravitational problem. Get a building that's too small or too flimsy and you could easily wind up right back where you started. So let's examine this Estator to make sure it measures up.
When it comes to capacity, this shed falls into the large range. It offers 956 cu. ft. of storage space and a built-in attic. So unless you've got a truly massive amount of stuff (for more on that, see the section entitled "Domestic Black Holes: Dealing with the Singularity in My Backyard") you'll probably find this building more than adequate. Remember, you don't have to take all of your belongings out of your garage, just enough to return its gravitational pull to normal.
Your secondary storage building also has to be durable. If it isn't, you're going to run into one of two problems: one, you're not going to feel comfortable storing anything of real value in it, thus limiting how useful it's really going to be, or, two, it's going to fall apart after a few years and you're going to have to move everything back into your garage anyway. Fortunately, this Estator's tough galvanized steel construction and baked-on polyester enamel finish make it extremely reliable. It has absolutely no problems standing up to harsh weather and even features a twelve-year warranty.
Dealing with any kind of gravitational issue can be intimidating, but you don't have to stand idly by while your garage slowly devours the neighborhood. You definitely have the power to do something about your situation. A shed like this Estator will make it easy to restore your garage to normal and get your belongings organized while you're at it.

Plan on 2 people for 24 - 36 hrs to install shed with floor kit if on uneven ground. Uneven ground, place plywood (loose) on floor, you will need to remove it later to better shim it level. Doors could use better directions, but one side done other is fast to get done.. For the value, its a good shed, but I'd be worried about snow build up on it. I'd use 2X 4s to brace walls from floor to roof and then 2 2x4s from floor to roof center beam...... The door opening is much bigger than the picture shows also.