I will be arriving earlier than the other people who will camping with me -- that is, if current negotiations go on as at present -- and would like to mark off enough space so that they can park their car and pitch their tent when they arrive. What's the best way of staking out space that is likely to be both "fair and balanced" -- that is, a balanced use of space seen as fair by later arrivals? Is there a marking off system you can buy at Canadian Tire, for example?