How do I find an order?

Short answer: The search box accepts an order number or a customer name, nothing else. The Status menu beside it narrows the list to one state, and the cross that then appears clears every filter at once.

Steps

Open the Orders page.
Type your search into the Search by order # or customer... box at the top of the list. The start of a number or part of a name is enough.
To keep one state only, open the Status menu and pick a pill. All brings the whole list back.
To change the order, click a column header: Order # sorts by date, Items by number of products, Amount by amount. A second click reverses it.
If the list is long, the selector at the bottom switches from 25 to 50 or 100 rows per page.
To start over, click the cross to the right of the Status menu: it only appears while a filter is on, and it clears them all.

The search only looks at the order number and the customer's name. A product name, an email address or a size will return nothing. To find someone by their email, go through the Contacts page: their sheet lists their orders.

You'll know it worked when: The order you were after is the only row on screen, or sits in a short list.

Going further

What do the order statuses mean — what each pill filters.
How do I find the buyer of an order — the route back, from an order to a contact sheet.