Keep extra decapping pins, especially if using military calibers. nothing sucks more than to plan your alone time to reload, get everything set out and ready, nice cup of coffee ready, good music going and then breaking a pin on a crimped primer or berdan case that snuck in, about 5 cases into it on a Sunday, when nothing is open to get a replacement, you live an hour away from the nearest store that carries such things anyway, and boom. Your done for the day. Ask me how I know. The dog gets to learn some new words.
Only other thing i didn't see mentioned was save and USE your books. New books contain good info and I do buy them but the old books contain calibers the new books drop. You end up with quite the library and gives you good cross reference data.
Don't think you will save money. You can tell the wife that, but it ain't true, LOL. I load for accuracy and satisfaction not to mention some odd calibers that good factory ammo is not available or difficult to find.