I don't usually wear shirts or jackets which have pockets suitable for fountain pens, so I need a pouch in order to carry them in a trouser pocket along with change, keys, and such. There were a few black leather Cross pouches (discontinued, I assume) on eBay for under $10 BIN (and very reasonable shipping), so I got one. (See Item No. 320107507960. I have no connection with the seller other than being a buyer.) It turns out to be a very nicely constructed item. It has a divider and easily holds two fairly large pens (such as a Townsend and a Phileas), but I plan to use it for a single pen and a pencil, and maybe a couple of ink cartridges. Items like this are usually so expensive that I feel that it is a really good deal.
Richard Saylor