Which is the best,Travelex offer these at Dover,and the Post Office offer cards to load up before you go,so you dont get over drawn.
travelex is thebest one ive used the thompson one but the travelex on has a much lower minimum load
pay with your normal bank card and you’ll get a better exchange rate and less charges 
hi all . we use the yes money card for firm. boss can put any amount on in euro instantly. me and her in charge use caxton fx card. min load of 120 euro but no charges atm’s or resto’s etc. we find it works very well. donna tops it up in uk i get my pocket money within the hour. saves us about 200 quid a year and a very good euro rate…cheers