Very nice informations on making money extra. I too have a few thoughts on this topic -
Blogging: This isn't quick money, but you can make decent money with a little luck and a few months of solid, consistent effort. Believe me, it can be tough and a bit time-consuming, but it can be done.
Sell bottled water : Buy bottled water in bulk and sell it for a dollar where there are a ton of people -- parks, festivals, concerts, etc.
Sell your baked goods: Are you skilled at a few special recipes? Contract your items out for parties, meetings, etc.
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Expense management