One day walking through Ross, an off priced retailer I saw a rack of Havaianas flip flops for $4.99 per pair, I love Havaianas. Since I buy this style of flip flop all the time I knew they sold between $18-28 retail, but I did not know how much someone would pay for them on ebay. So I bought them for $5.29 including tax. I listed them for the buy it now price of $9.99 plus $4.99 shipping for 30 days. After two weeks on ebay someone bought them for a total of $14.98 including shipping.
TIP: I recently had a package returned to me from the post office, this was the first time this ever happened to me, apparently my package was off by 1 ounce. I could not believe the post office accepted the package if their intention was to return it back to me. I was not happy, I had to re-pay for shipping and the package was obviously delayed to the customer. So my advice is if you weigh your own package and purchase your label off of ebay make sure when you drop it off the post office scale weight matches yours. I also noticed that usually I can increase the weight of my package by an ounce or 2 and the price stays the same. For example it does not matter if your package weighs 6, 7, or 8 ounces each weight costs $2.77 to ship USPS first class, so if I have a package that weighs 6 ounces I will input 8 ounces, it costs the same and I am ensured that the weight is good even if one post office scale is different from another post office scale.
$5.29 item cost including tax
$3.40 USPS first class shipping
$1.50 ebay fee
$.45 paypal fee
$.08 poly mailer (9 inch by 12 inch)
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My total cost to buy and sell this pair of flip flops was $10.72, my item sold for $14.98, so my profit was $4.26. The profit from this item will buy our Frostys after school.