I have the priviledge of educating those new to the Web about how to achieve Web success. That however, despite any level of success that I have already achieved, does not mean that every once in a while I don't make mistakes.
One of the most serious issues for newbies is paying for Web solutions and services that you could get for much less or for nothing at all. This has never been better exemplified than through the case of domain names. Why would one registrar charge under $10 for new registrations and renewals while others like eNom and Yahoo! charge $29 and $35 respectively? I'm not sure either but as an aspiring domainer it is essential that you know the cost upfront at various registrars before you put all of your domains under one roof.
If you are buying domains - whether it's on eBay or at any domain auction house - it is imperative that before you make an offer you ask where that domain is registered and when it is going to expire. This recently happened to me when I acquired a domain name through eBay. The domain was being sold for far less than one would expect a domain of that caliber to go for, but what I failed to ask the seller was where it was registered and how many days were left before I had to renew it. Once the domain was transferred to me, I learned the ugly truth. The domain was set to expire at eNom in less than one week and that the renewal would cost me $29.95. Another mistake that I made was to not consider transferring the domain to another registrar before the expiration occured. That transfer would have been free at eNom and I essentially could have saved myself over $20.
Lesson learned. If you're an aspiring domainer, please heed this advice!