I am brand new to Cardmaking. I made one style and repeated it ten times for some Halloween invitations loved doing them. They were a standard A2 card but with embellishments they had a little added thickness. For this reason I took them to the post office and asked the price of postage. After passing one of the card around to four different employees, they literally just guessed at what the Cost would be. I see myself doing more cards so my question is: How do you determine postage? Do you take every item to the post office, have a postage scale or use
some service like stamps.com. I'd prefer not going to the post office every time if there is an alternative.