If you have a gift card with less than $10 on it, the business is legally required to give you the rest of your balance in cash if you ask.
FILL OUT ONLINE SURVEYS.
People these days make as much as 500 dollars a month filling online surveys. Some online survey sites areToluna, Vivatic, MySurvey, YouGov, SurveyBods, Valued Opinions, The Opinion Panel, iPoll, Global Test Market, Hiving, PanelBase, Harris Poll, Opinion Outpost, Yourword, Pinecone, IPSOS, New Vista. You can make as much as 5 dollars filling out some surveys.
The photos you take can be sold to photo agencies like IStock or Shutterstock. Each time someone downloads your photos you get 25 cents.
Being a secret shopper means visiting shops to provide feedback to agencies on how their products are doing. The smartphone app Streetsport could be helpful in the direction of getting mystery shopping job.