Hello all, I’m visiting the US soon for the first ever time for a little solo trip. How much cash would I need to bring? I’ll be using public transport and need to tip but I don’t want to bring too much or too little. I’m on a budget too. Would $100 be enough? I’ll use card for everything else. Also any general tips as a first time visitor would be wonderful (I will be in Philly) thank you! (From the UK)