I have tried other name brands of address labels, but definitely prefer Avery over all the rest. Avery's templates make it very quick and easy to design and print your labels. They are easier to peel and a better quality than the others. I would strongly recommend this product.
We use these on A6 envelopes (which may or may not be taken by the printers) when we have too many addresses to write out by hand and use a script-type font. They look great and can be made to look fancy with the envelope showing through. We also use these on folders when we want the color of the folder to show through. They're perfect when you want to be a little more elegant than normal.
I love the labels, used them for almost everything, especially for invitations and now with the holidays coming up, of course I will use them again. I love the idea that you can't really see them on the envelopes. My husband also uses them. I'll tell you one thing it sure beats writing the address on the envelopes.
I have used these clear labels on our greeting cards for 2 years and I really like them. They are easy to apply while retaining the features of the envelope. Some cards have delightful envelopes, which are disrupted when applying a white mailing label. As always, Avery offers the finest in quality products.
These clear labels are great for addressing cards - they don't block the design on the envelope - plus they are big enough to allow you to use pretty fonts to dress things up (even if the post office doesn't care for script.....I do!) Just be careful with your printer and make sure you do a test run on a blank sheet of paper to make sure things are lined up - and you are good to go!