This reminds me of a funny story...
a couple of years back a friend in the Army split with his wife, and she took his souvenir money collection. It was a shoe box full of currency he had kept as mementos from various duty stations he had been on.
Being vindictive as you know a spurned gal can be she planed on cashing it all in for usable currency, spent a whole day at an exchange doing just that, took her hours and hours.... all for less than $35 bucks
I can't find my book right now, but for the most part, I'd say yes. The Canadian, Scottish, British are probably worth exchange rate at the minimum. The Caribbean note is probably based on the US Dollar. Overall there may be nothing that has a lot of collector value, but as a lot should be worth $10-20 bucks, maybe more if any of it is from a particular series.
Top row second from left is a current Mexican bill for 20 pesos. I have two in my billfold which look exactly the same. Not worth exchanging in most places, but worth about $1.33 if you were here in Mexico with me. With it you can buy a kilo of green beans in the vegetable market. Not sure if that will buy a can of beer or not, since I don't drink. Maybe a couple small bottles of bottled water.