A few thousand dollars by the end of summer? Sign me up!!!
Just a suggestion, if you take food for your lunch and snacks, you can save money each week. I NEVER buy lunch. It's not like I wouldn't love to, but I'm a single mom. I can make a nice sandwich, have some fruit and yogurt, even take some leftovers to microwave, put a salad in some tupperware. It's so much cheaper.
One lady that I've known for years told me the greatest idea. She told me that she had saved just under $900 for Christmas shopping. What she did was, she never paid the exact amount for anything. Like if she went to the store and bought $13.47 worth of things, she paid $14.00 and put the change in a jar. If something was $18.37 and she paid with a 20, she put the change in a jar. At the end of the year, she had jars and buckets of change. She took it to a local casino because they have a massive automatic change counter. They charge a fee for it being counted and sorted, but she walked out with cash, in bills and was glad not to have to count and roll all the change.
That's not going to get you a few thousand by the end of the summer, but I've started doing that. I count and roll my change though and take it to my bank every so often.
Try it and stop spending money on lunches when you can make them at home. If you go to Starbucks for coffee, make your own coffee at home and put the money you would spend each week at Starbuck's in a jar.
There are lots of things you can do to save money if you can't find ways to actually earn more.
A penny saved IS a penny earned.