Ruler bar on the slide
(To be able to know what you're adding in inventory). A slide ruler with numbers on the side.
Especially when I take my own pics.,.
I know partender has been great about keeping up with most of it, but as a secondary check.
That way MY .4 isn't partender's .6
One of the great advantages of Partender is accuracy, which means getting away from the old-school 10-point system.
With Partender, you are able to set the level to the exact level you see on the bottle image. In the past, you may have thought a certain level on a Grey Goose bottle was .5 when in fact it was .6. Instead of trying to guess what the percentage is, Partender does the math for you!
As long as you set the correct level on the image based on what you see in the physical bottle, the inventory quantity will be accurate. =)