Always grab a .com if you can, it is still the most prized domain name extension (suffix). If the .com has already been registered consider adding a descriptor to your name as described in Tip #3.
That is what I had to do to register a .com for my fine art site.
KimBruce.com is registered to a realtor in the USA, so I added fine art and registered KimBruceFineArt.com
Other examples are:
When you create your site make sure you use Your Name Pottery or what ever your descriptor is in the title.