You will want to figure out how much stuff you have to store before you decide to choose a space of a particular size, since there are many options for storage units. Once you do this, though, you will be able to prioritize larger things and smaller boxes. The best thing to do is decide which items you will not need access to for some time. You probably have extra pieces of furniture that you don't need at the moment but still want to keep. You can also put all of your family's seasonal sporting goods in one of your storage units. That is just the beginning. When you begin cleaning out the garage or the back of your closet, you will probably find all sorts of things that you forgot you even owned, like that sewing machine from your DIY phase or that wall air conditioner that you no longer use.
As you are planning for the transport of these items, be sure to really think about whether you even need this thing or that. This purge is a great excuse to hold a yard sale or put a few valuable things up for sale on eBay. Who wouldn't want a little extra money to put away in that rainy day fund of yours? You would be surprised at how much money you can get for your unused items. One man's trash is indeed another man's treasure.
Do you have a family member or a neighbor that could stand to move a few things out of their house as well? Consider splitting a storage unit with them. You can keep things separate in the space and both reap the benefits of having less clutter. Plus, you can split the rental cost. So, what are you waiting for? Renting a storage unit is easy, and having one can make your life so much easier!