<prompt> Human: Were early 20s and just looking to save money for a vacation in a year a so. I would like to do it jointly but we are just dating and dont want to make a joint bank account or anything like that. I looked into apps and there is BetterHave but it is not supported in US. Should we simply keep the money in a piggy bank? Does anyone have any other ideas?  <response>: Why dont both of you just save up for your vacation in your own accounts?When it comes time to buy plane tickets and make hotel reservations, you can use the saved money to pay each other to make the costs equal. There doesnt need to be an external account really. 