<prompt> Human: I had this friend in college who taught me a lot of very useful financial tips. One of which was to always sell your stuff on eBayCraigslist when youre done with it. Now, I know what youre thinking...no shit right? But I dont really know anyone else who does this, aside from the friend who taught me about it all. Upgraded iPhone? Sell the old one on eBay. New receiver? Sell the old one on eBay. Again, I know it is obvious but Im willing to bet most of you dont really stick with it. You should.Youd be really surprised how much even broken stuff can be worth selling as parts. Or some things will sell for damn near full retail pricing. About 5 years ago I purchased a motherboard which actually sold for MORE money when I finally sold it last month cleaning out my computer parts. Crazy huh? I effectively built a computer that I used for 5 years and MADE money on some of the parts.All this stuff REALLY adds up. My girlfriend who is a minimalist would rather throw her stuff out just to get rid of it quicker. When we started living together I started to show her just how much all this stuff adds up. That old coat she got rid of? Was selling for 18. Camping equipment? Couple hundred bucks. In the three years weve been living together she has probably saved at least 1,000 by putting in the effort to sell her stuff instead of throwing it out or giving it to a friend.The other day I came acrossed my account statistics. I was surprised to see that I have sold nearly 33,000 worth of stuff in the 12 years I have had my account. That is 33k more I had for my condo down payment or 33k more I had to pay off my college loans. All saved just by making sure to sell my old items when I either replace them or dont want them anymore. Now, Im not going to lie. Being a seller on eBay can be a huge headache sometimes. You have to be careful. As we speak a buyer disputed a purchase with me purely because he didnt read anything about the item I am selling. I had another guy try to scam me out of 1,500 on my old DSLR I sold. So this definitely isnt easy money. It is kind of a pain in the ass.But because I deal with the headaches and force myself to keep up with it, I am financially better off. I suppose I could have saved even MORE money by just never buying stuff. But that isnt who I am. I have hobbies that I enjoy, most people do.Anyway, I apologize for the long winded post which may seem rather obvious. I doubt many will see this but I hope one of you tries to stick with something like this because it will definitely add up. Good luck!  <response>: Not to mention the 300,000 you had to spend to accumulate those savings 