That was also our experience a year ago when we spent 10 days in Amsterdam and surrounding area. We had taken some Euros with us that we got at an Exchange place near home (Barrie ON) before we left and came home with most of them!
For tipping we added the tip onto the total of restaurant bills when using the credit card machine. We found even parking meters took our credit card, there was no option for paying with coins even for short stays. We didnt use any bellhops but did use an Uber and tipping was done in the app. We tried to tip the girl who pushed my dad in his wheelchair around the Amsterdam airport (pre-arranged) from the plane exit to the rental car desk, waited for almost an hour with us until we got to the front of the line, then to the rental car pick-up, but she wouldn't accept it saying she got paid by KLM and or the airport. My dad gave her his Canadian flag lapel pin which she happily accepted.
~Diane