Here I have my cheapo $10 paper shredder from Walmart that I bought to "shred my personal" stuff years ago. I bring it outside with an extension cord. I have this wonderful Ames wheelbarrel that the previous owners left. I shread and dump in there.
I just use basic old newspapers. I don't use ads.
Here's what my garden looks like now. Too much newspaper? I don't know. I try to build up around each plant to make the water stay around the plant.
I talked to my Polish neighbor. He asked me what was all over my garden. I told him I shredded a bunch of newspaper for mulch. I think he thinks I'm some sort of Ecofriendly Hippie. I'm not. I'm just cheap and do weird things like this from time to time.