The only time I've ever had baggage labels is when booking through small independent travel agents, never direct from the airline. I never attach them either.
The crucial thing is to make sure that your name and contact details (home and holiday) are on a conspicuously placed piece of paper **inside** every case you check in - that way you have some chance of seeing your bag again if the airline labels are detached from the outside .
By baggage labels I thought you meant the type that have a bit of string on and you write your details by hand. How do you get labels (of any type) online? You print them on what?
Very easy Prudie.The label is printed down the near center of A4 paper ,also fold lines are printed,when the paper is folded correctly its about 1 inch wide and very strong you then place it through the case handle overlap about 2 inch and glue together.