The possibilities are endless:

• Use your default nick + your countries TLD, that's what I did.
• Open dictionary, pick random page, pick random word.
• "Domain names are like women, all the ones that I want are already taken" "Well yes, but you can still get one from a strange country" (Say, .cc or something)
• Me, I like the domain "somewebsite.com", it's still free afaik.