One thing I missed from ProSeries was the mailing slips for when I absolutely had to mail out a copy of the return to the client or when I had to paper file a return. Since I'm on ProConnect now, I just made a pdf Mailing Slip Sheet where I can copy and paste the address in. 

Here is the Google Drive link to the PDF file

The envelopes it is designed to fit in are Product 07-445 InTax Envelope: 10 x 13 Landscape Peel & Seel