Well first let me start off by saying Welcome to Listia.
Second tracking packages is very easy. All you have to do is when you go to the post office, to pay for your package all you have to ask for is tracking it cost 90 cents.
My suggestion to you, because you are new is to get tracking on your packages. I do it with all of my packages that I send out. That way no one can say they didn't receive the package. Not saying all people on here do that, but it is a way to cover yourself that way it prevents it from happening. Yes it does cost extra rather then just sending with a regular stamp. But, I personally think it is well worth it. It is not obligated for you to put tracking, it is only if you want to. Good luck, I will be watching and bidding. If you have any other questions feel free to ask, I try and answer them to the best of my ability.
Not all tracking is only 90 cents. I just mailed several Listia items from CA. I use a machine at the PO. It weights the pkg. prints postage, and I can mail anything at any time of the day since it's a machine. However, adding tracking at least doubles, it not triples, my postage. It would have added $4.00 to a $2.00 pkg today.
I usually pay for tracking only if I'm shipping something worth a lot of credits. Also, if you use stamps.com tracking is free for first class packages or priority mail.