Hello, so I saved money for gratuity, but i feel now that its not enough. My wedding is in a few days, so i feel awful. I want to tip everyone at least 20%. Is there a proper way I can tell them , I will send them money in the mail. The wedding is a few hours away from where I live. Also, my friend who is married, told me to only tip , catering people, bartender. Not all my vendors, she said you only tip people who serve you. DJ, Photographer, they dont get tipped. I was planning on tipping all of them.