You guys are going to hate me but I haven't had to buy a cleaning patch in 5 years. One of my younger brothers works at a chemical plant where they use cotton patches to clean out some piping from time to time. He told me they had a room full of patches and they were used very little. His boss said he could have as many as he wanted as long as it was over time, i.e. he coulden't take an arm full out with out looking suspicious. He has given me about 5 or 6 bages of them over the years. Turns out they are OxYoke 12 gauge cleaning patches in bags of 1000. Last time I saw him he gave me 4 more bags of them. I'm set for life.