Quote Originally Posted by Old git View Post
"When exchanging cash, rates are better than everything else I tried and there is only one variable (where to exchange cash)."

Next time you're changing cash, note the difference between the buy rate and sell rate for notes - and see how far adrift the average of the two is from the buy rate - that's what your losing on the deal when you change cash.

My method is far more efficient..
Indeed I check the spread between buy and sell at money exchange booths. In Thailand it can be under 1%, in airports in Europe I saw spreads of 30%.

In your particular case you might get a better rate than I do, but your method is not generally applicable as it works only for your combination of home currency and home bank.

Currently on Superrich, Euro 100-500 notes: buy 37.6; sell 37.65; that's a spread of 0.13%;
xe.com 37.71 THB for 1 Euro; that means on superrich I lose 0.3% versus xe.com.