[deafsmithco]

I use a note book in addition to the load stickers I put on the box of ammo. Record the following:
caliber
powder: make, type, weight, lot #
primer: make, type, lot#
bullet: make, type, weight, lot,#
case: make, lot# (I don't weigh the case but some do)

How many times the case was fired.
How many times case was trimmed.
Over all length of loaded case.
Muzzle vel.
The firearm it was loaded for.
The date it was loaded.

This all goes in the book along with how well it shoots and any other little tidbits. The stickers get as much as I can fit on them.
It pays to buy in bulk once you find a load you like. Keeping records lets you know exactly what you loaded and how it performed, so you don't have to start from scratch when your cases are empty. You don't have to guess at your brass history, which is important. There can also be a recall on a component you are using, so having lot numbers is very important.

I have never used a commercial log book and don't know what's out there. I
would like to hear methods others use, as I could find a better way.