Good info, Astro.
I've been re-building a gun cleaning kit. I had some stuff back in the 90's and 2000's, but through 3 moves, 2 home sellings and time spent on other things, it appears all that stuff has disappeared, rotted or become useless.
I have accumulated about 4 white t-shirts that have become un-wearable. I'm spending some free minutes here and there cutting them up into 3" squares. I'll have enough patches made to most likely last 20+ years.
BTW, if you are a little timid about gun cleaning, taking one down properly, cleaning properly, etc.... there's some great youtube videos out there, usually for any make/model/caliber. I highly suggest spending 30-45 minutes finding some good info there and learning your tools than to take them somewhere to have them "cleaned" by someone and not learn how to take care of your stuff.