I mostly ship my orders in normal to large envelops using forever stamps. Im sure Im not alone in this so I have and app that allows you to print up your orders on a standard label sheet. It pulls all your open orders and formats them perfectly to fit on a 30 up label sheet so you can easily print. No more copy paste or hand writing labels. https://bitcowsstickers.com
If you have one order or 30 you can quickly make the labels.
https://www.etsy.com/in-en/listing/1388014793
https://www.etsy.com/in-en/listing/1350510469
https://www.etsy.com/in-en/listing/1370846694
https://www.etsy.com/in-en/listing/1367410416
https://www.etsy.com/in-en/listing/1382930305
https://www.etsy.com/in-en/listing/1312944970
https://www.etsy.com/in-en/listing/1364327444