I had my hair and makeup trial today, but things were so crazy beforehand (FI's car broke down on the way to our cake tasting earlier, it had to be towed, leaving us stranded 150 miles from home, mechanic can't look at it till Monday...) I didn't have any cash on me to tip her! She was super nice, came in when the salon was closed, did a great job so I feel terrible. I'm mailing her our contract next week, should I include a tip on there with just a little thanks note so she knows what it's for? She doesn't charge for trials, my day of is only $100, and there was no deposit. If I do mail her a tip, how much? Or should I just tip extra good on my wedding day?