I was told to do this by a co-worker of mine (thanks Julie!) and tried it out this weekend. If you have a large pot that you're worried about it being too heavy to lift once the soil goes in, fill the bottom with empty 2 liters and/or platic milk containers to take up extra space!
Then pour the soil on top and continue potting as usual. You will use half the soil and your pot will be allot easier to manage!