@rockpile1369! I watched the video tutorial twice, once when I joined the swap and again later on. It definitely is helpful, but it helps to learn from the experienced people in the swap. Be prepared to ask questions and expect many compassionate people to answer you.
My suggestion is to offer seeds that you have since you will find that what you may think is common, may not be in other parts of the county. I am frugal, so I canvassed my neighborhood on my walks on found many more to offer. I am still harvesting in my yard so more is to come from me. I must admit, at one point I felt that my offerings were not terrific, so I purchased some packs on sale with discounts. It looks like I did not have to do that, but it made me feel more generous. I am having a fun with the games going on the swap! I love the picture by your name. What is it? Hope you have seeds for it