Gold Dot Stickers 1 Inch Round Labels - 1000 Stickers Per Roll | Perfect for Organizing, Color Coding & Crafting Projects - LabelValue.com

Not just an embellishment, a vital seal nowadays. Many of my envelopes have poor glues on them and simply do not seal well. I use one or more of these to fix the problem. I've noticed that the smaller the card, like thank you notes, the worse the glue for some reason. They also look classy as a nice touch to the back of an envelope.