If you go into a Lowes home improvement store you can change the store manager's name on the bottom of the receipt. Just spend some time walking around until you find a terminal that has been logged on and left unattended.
Whatever screen it is on, press F3 until it wont change screens any more (usually 6 times is all that is needed). When you are in the main menu you'll see a list of 16 entries with the first being
If you dont see that, you're not on the right screen. Just press F3 again if needed.
Once you do get to the top menu, press SHIFT+F3 to access a different menu. Then put in 13 and press enter. In this screen you can edit the store manager's name to whatever you want it to be. They may not catch it for months and it will print on every receipt at every register.
Another thing you can do is the selected items report. Follow the steps above and get to the top menu with 1. Sales Menu as the first option. Then type in 9.3.1 and hit enter. What you want here is to find the Stock Type and Stock Level, press TAB to scroll down to it and type an S beside "ALL" in each column. Then press F9.
What this will do is generate a report on every item the store has ever sold, whether they still have it or not. When it is done compiling it the report will be hundreds of pages long (it will print at the nearest printer). While it is in the process of compiling that data no other reports can be run. You'll keep everyone in the store from being able to process reports for hours. The best time to do that is early in the mornings when all the reports are being submitted.
There's a couple more, but I'll hold on to them for the time being.