1. When I set my powder measure, I use a white grease pencil to write the powder and charge on the plastic reservoir. This confirms the setting and months later I know exactly that it's set to UNIQUE 6.0 GRS or whatever.
White grease pencils are sold in stationery shops and used for marking china. Black grease pencils are more available but not as easily read.
Of course, you should never leave your powder in the reservoir. Empty it back into the powder container it came from.
2. Ronson lighter fluid. Or any brand for that matter, but I like the bright yellow Ronson plastic bottle because it's easily spotted. The flip-up tip allows you to easily put a drop on a cotton swab, to clean a shell holder or bullet seating stem.
Lighter fluid is good because it evaporates and leaves no residue. It's great for degreasing chambers at the range. A few drops on a patch, which is run into the chamber and rotated, will remove any residual oil.
Because so little can be applied with its pointed tip, one bottle goes a long way. But I always have two bottles, one on my reloading bench and another in my shooting bag.
3. Q-tips, also known as cotton swabs. Great for cleaning shell holders, seating dies for small calibers (.22 Hornet comes to mind), and anyplace that doesn't offer a lot of room.
4. Pipe cleaners. It's difficult to hold a muzzleloader nipple and scrub off its fouling. Take a short length of pipe cleaner, bend the head into an L-shape, and stick the cone end of the nipple on the pipe cleaner. Gives you a handle to hold the nipple while you scrub it.
Pipe cleaners are also handy for cleaning the threaded hole in dies, into which seating and decapping stems are threaded.
5. Ivory soap. I scrub my black powder guns with hot, soapy water. I like Ivory because it floats, and I never have to search in the water for the soap.
6. Cheap masking tape for white target pasters. At 25 yards and beyond, you don't even notice the slight difference in color. I've covered the holes in targets, and reused one target, up to a dozen times before it got too ratty.
7. Wide felt marker. Made up some high-pressure .45-70 loads for your Marlin 95 that would destroy your 1873 Trapdoor? Run a wide stripe of red, black or whatever color you prefer across the case head. This will warn you as soon as you open the box. Sometimes, chatting with our buddies, we may be distracted and not read the reloading label carefully.
8. Collecting loose brass as it falls? Bring one of those square, plastic mayonnaise containers that are common today. It has a wide mouth with a flip-up plastic top, and because it is square it takes up less room than a round jar. Also, because it's plastic, it won't break. It's transparent, so you can see what's in it at a glance. I keep one in my range bag.
9. Altoid sour candy tins are great for carrying greased wads or patches for muzzleloaders. They're round, and seal much tighter than the flip-up tins, preventing the grease from drying out. They're made with a shallow dish on one side: push on it with your thumb and the whole lid pops up. If you've ever tried to open a tight tin without this feature, with greasy hands, you'll appreciate this little feature.
These tight, round Altoid sour candy tins also make good survival kit containers. Put a little beeswax around the edge before closing, and it's absolutely waterproof. A good container to carry matches, tinder, lighter and flint striker.
I know that not all of these are reloading tips, but they're useful for shooters. It's all I can think of right now.
