I collected cans in my teens and made a few extra bills for spending money. If this idea is of interest, you might be motivated to hear the true story of Maisie Devore who was able to raise money collecting cans for a community swimming pool. She was able to save $73,000 over three decades and is still collecting. Whoa! Learn more about this idea by reading my collecting aluminum cans for cash post.
The ego is the driver making the decisions. It decides between the devil (the id) and the angel (the super-ego) on either shoulder (yes, all those cartoons you've ever seen are partly true). We have voices in our mind, and it's up to the ego to decide which one to fulfill. Its goal is to satisfy the id in some way while also attending to the super-ego.
Hunt for under-priced used books that you can sell online. Download an app that reads ISBN numbers so you can scan the barcodes on books. This will pull up the book’s current price on Amazon so you can see if it’s worth trying to resell it. Then, visit used book stores, thrift stores, and garage sales to look for high value books. Post the books for sale online using sites like Amazon or Ebay.