Good idea to back up your thumbdrive to PC *and* CD/DVD
Just a suggestion
When you hit that plateau of having set up your thumbdrive with most of the apps you want/need, plus other documents, etc. you want to save, copying that to a directory on a hard drive is a good idea.
But, also burning it to a CD (or DVD) is a good idea, especially if you are away from home on travel. If you have that CD (or DVD) with you in a backpack or baggage and your thumbdrive goes bad (or is stolen...in which case your sensitive files are ideally encrypted), you can buy another and then have a way of getting the new thumbdrive up and running quickly. This happened to a friend of mine who was traveling in Europe and since he had a duplicate on a CD with him, he scrounged his Euros together and bought a replacement drive and was back in business quickly.