1. Meguiar's Car Cleaner Wax (In the Red Bottle) is almost a dead even substitute for Dillon's Liquid Case cleaner. The Meguiar's has a very fine abrasive that will make brass shine. A capful is all you need per load. A lot cheaper and easier to get than specialized case cleaners.
2. The decapping stem from .303 British (RCBS dies) can be used for almost all the .30 caliber dies (30-40 Krag, 30-06, .308 etc...) when using cast bullets. The .303 stem comes in about .310 - .311 depending on die sets. If you have a KRAG or Springfield 03, 03A3 that has a larger groove diameter, the .303 stem will help you get a better bore fit. Simply swap the .303 stem for your .30 caliber stem to get the larger fit. Marking the stems with a permanent marker is also wise so you know which goes with which.
3. Your tumbler is also a handy device for cleaning things other than brass. I've cleaner many a rusty die set with a vibratory cleaner. Duct tape the tunnel if you're worried about die damage.
4. It's hard to beat plain old ATF fluid for rust prevention. As Ed Harris once said, it's the best cleaner, luber, preservative for about $2 per quart. I soak all my dies that are going to be exposed to humid conditions in ATF. They rarely rust.
5. Baking sheets are hard to beat when sizing/lubing vast quantities of cast bullets. Lubed sized bullets can be stored in a simple rack. The perfect rack I purchased years ago at an auction. An Airline food cart. The vertical stack, with the built in trays (with wheels on the bottom to boot!) is perfect for storing all your sized/lubed bullets.
6. A ~6oz.~ Tomato Paste can cleaned, dried, and open on one end filled with hot lead will cool into the perfect lead hammer head. Once cool, peel off the tin can (or cut with a dremel) and bore the center axis for a tapered handle. Toss or remelt with a new can when its been beaten to death. Small lead hammers are handy when casting bullets (for striking the sprue plate without damage).
7. I glue or epoxy pennies, nickels, or quarters to the base of my homemade brass powder dippers made from old brass cases. The added weight and wider base makes it much easier to set the dipper down and have it stay upright. The wider base may or may not affect the "dipping" motion. YMMV. Penny pinchers can use a washer for lower cost.
8. Home Depot, Lowe's and other big box hardware stores sell empty unlabeled metal paint cans that are perfect for storing small amounts of powder purchased in bulk (surplus powder). Simply add your own label. The wide mouth of the paint can also makes dipping from the can much easier.
9. It is virtually impossible to beat the standard USGI .30 Caliber ammo can for sheer utility and general usefulness in reloading, storage, and range duty. Larger cans hold more, but are heavier, take up more space, and generally cost more. If you're just starting off reloading and shooting, standardizing on the .30 can, and no other, will yield benefits long into the future. Use standard Avery Mailing lablels to mark the top and front end of can when stored. Very easy to find what you are looking for. For me, a white background on a label means empty brass, an OD background, loaded ammunition. Pick your own color scheme and standardization will yield immense benefits. Range transport with .30 cans is eminently easier with .30 cans in lieu of .50 cans.
10. Multiple reloading books are required. But your end result should be a 3 ring binder or similar, tabbed and indexed by the weapons you own and shoot. I tab mine by model & serial number. I use one 3 ring binder, with a tabbed section by each firearm. Each section, by firearm, shows what loads I have tried, which ones are successful, and which ones aren't. It's also a handy place to store cut outs of targets with good performing loads. The one binder is a handy reference when trying to load ammunition for a rifle you spent 6 months on load development, lost interest in, and "re-discovered" after 4 years of being in the back of the safe. You're going to want to know what works in that rifle, and that rifle only. So having a tabbed index for just that rifle is a very handy reference to have when you want to quickly assemble 100 or 200 rounds late Friday night to be ready for the range Saturday morning. Don't waste your time or effort by losing your data you spent hours developing. Store it in one place, in one binder, bright red works for me.
11. If you want to save money with a buddy and you live in a major metropolitan area, look in the Yellow Pages under "Abrasives Dealers" for a dealer selling 12/20 Sieve Crushed English Walnut. It's normally about $15 - $20 per 50lb bag. This is tumbling media. It's also what dealers rebag and sell you at gunshows for $5 a 1 gallon bag. Go bulk, it's cheaper. A 50lb. bag will last me 10 years or more.