@jnbhlr if there is money in the account that the debit card is on, that'll evaporate quickly.
if i keep the money in an account in another bank that doesn't have a card and takes a day to transfer, that makes it less easy to impulse buy.
with scheduled transfers 3 times a week, you get a steady amount of money to spend.
@thor Scientists developed a guidance chart on how to try reduce impulse buyings https://www.projekt-meinding.de/fileadmin/md/uebungen/Tipp-Wirklich_MeinDing.pdf maybe you can get that translated as I think it's fairly good