living on a shoestring
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vocabulary:budgeting
income
out flow
expense
goals
pecentage
necessity
luxury
minimum
maximum
alternative
-------------grammar focus,repositions after adj
i am good at living on  a buget.
he is worried about being able to get a promotion at the end of month.
they are sorry for not being able to help you in your time of need.

most people are worried about whether housing price will goes up or down.

------------language point
live on a shoestring
    A "shoestring budget" refers to someone whose resource are limited to
the laces of his or her shoes.
   it basically means being extremely poor.
   Someone live on a tight budget can be said to be "living on a shoestring".
----------------discussion------------------------
go the street stalls, and stay in youth hostel,make a day to day plan on where to go or what to do.

it was nice to meet people who were in the same boat.