@litvishechosid
You can solve your problem by using a DEBIT card. Your date/dining associates won’t think you are living on credit and you don’t have to carry bulky cash.
I don’t think one should be worried about ‘impressions’ made by how you pay the bill in an restaurant. Today, most legitimate business is done with plastic. In fact more and more goyische restaurants no longer accept cash. I read an article about this in the newspaper within the past month
When I was young and maintained an office in Manhattan, I had house charge accounts at the restaurants I frequented the most. The check would arrive, I’d take out my pen sign my name and a two digit number. That often made an impression.