As a German, when I get the vote notification via mail I just fill out a form online, receive the ballot via mail after about two days along with a form to sign

As a German, when I get the vote notification via mail I just fill out a form online, receive the ballot via mail after about two days along with a form to sign, a bunch of color coded envelopes and instructions on how to assemble this voting Matrjoschka, and then just drop it all into any regular old mail box free of charge (well, kinda, taxpayer money and all). Or I just go to the place designated in the first letter on that Sunday between 8 AM and 6 PM and vote in person. I guess mail has the disadvantage that anyone could get a hold of your mail and fill it out in your place. Having at least a few options is good.