All though a great reason wikipedia has as to why the oystercard was named as such, in actual fact it is after the octopus card in Hong Kong!
In answer to the best way to use it...........
1. Look at how you travel, i.e only the Tube, or a mixture of Tube, Bus and National Rail, or Bus only.
2. How many journeys do you make each day, to a week, to a month. 3
. If you use the Bus for example and the odd occasional tube journey, then a bus pass loaded to your oyster and a minimum of £10 pay as you go will cover both ticket mediums.
4. If you use all of the different modes of transport every day, then it makes sense to use a travel card loaded to your oyster.
5. If you only use the Bus for example, then a bus pass loaded to your oyster is all you need.
6. Whatever ticket medium id right for you, ALWAYS get it fully registered either at the tube station or the newsagent, this means filling in a form, just having an online account is not fully registering your card. By doing this you will then always insure your ticket/pay as you go to be replaced in the event of loss or theft.
7. Make a note of your oyster card number-12 digits at the back, keep it safe at home, remember your security answer, and then if anything arrises you have all the information that the helpdesk will ask you for.
8. When validating your oyster card on the reader, keep a check on the information thatteh gates/readers say, it will tell you when your travelcard is due to expire as well as how much pay as you go you have left.
Pay as you go = exactly as it states, you pay for each journey as you make them and get charged the correct fare as long as you touch in and touch out.........
Travel card = If you purchase a travelcard for a month for example for zones 1-2, for the next month you have purchased unlimited journeys at anytime of the day across ALL modes of transport, not including the river boat service.
Barclay card are now offering a combined creditcard, pre paid facility, and oyster card all in one.....BarcalycardPulse
Hope that helps guys..n..gals....