Verimi is a German digital identity platform that allows you to keep track of your logins for various websites. I'm one of those people who are sceptical about this idea (putting so much personal information in one place). However, they have a partnership with Lufthansa, and you can get some instant free miles if you register with them. You don't need to give them much info either! 1) Sign up for an account. 2) Add your Miles & More number. As soon as you do, you will be given 250 free miles. Instantly. 3) Add your DOB, home address and phone number. For the first two, you can be - how shall I put it - 'innovative', of course. For the phone number, they will need you to verify a text message that they send to you, so you will need a genuine phone number for that. Once you have filled in these three, you will instantly be given another 250 miles. There is a third option to get 250 miles - by showing your 'identity card' in a 'video recognition process' but I skipped that. So, 500 free miles, with very little effort. Given how hard it is to get Lufthansa miles, you may find this very handy.