There are plenty of types of media that you can do this with. Plastic pot scrubbers are the cheapest option (this is what I've started to use). Then there's bio balls, ceramic rings, pumice, gravel, filter floss, just about anything really. You could even cut pieces of filter pads up and stick them in a filter media bag if you wanted.
That being said, there really isn't any reason to be regularly changing your filter media. The only time you should be changing it is when the filter pad you have is literally disintegrating. I finally had to change mine for the first time after 9 months.