San Stefanos Online ~ North West Corfu

hi . my family & I,wife & 2 girls aged 12 & 14 years old are going to san stefanos for first time on 6 August for 2 weeks.

Wonder if anyone could be so kind as to offer some advice on 1 or 2 subjects- not sure what to do cash wise as normally use a euro travel money card but for some reason got ripped off last yr in Tenerife so don't want to use it again & have heard there is only 1,not always reliable cash machine in San stefanos, thought I would take mixture of few hundred cash(euros) & few hundred sterling travellers chqs & use my debit/credit cards for the rest. Is this best option cos deffo don't want to carry massive amounts of cash as normally spend around 2k for fortnight?  How many Tavernas/restaurants are there in the village & can you generally pay for meals/shopping by debit/credit card or do some only take cash. 

We have hired car through San stefanos travel & would like to know what roads are like & is it easy to get around & are there plenty petrol stations? Planning on maybe visiting Paleokatistra, Kassiopi & few other places & taking in a boat trip whilst out there.

Any help/advise much appreciated.