I finally registered my new domain decoratingsmallspaces.co on Feb 10, 2014 after a few days of concentrated research.
I use name.com for my domain registration. The hosting is at insty.me, although I have an account at Hostgator where all my early websites are hosted. I need to diversify the hosting accounts so that it would appear better in Google eyes.
Prior to the domain registration, I have done all the basic research on keywords. search volumes, competition. The keyword research is done with Semrush.com with my monthly subscription of $69.95 per month.
The domain, decoratingsmallspaces.co is focused on the niche of Decorating small spaces. I use the exact domain match strategy for the domain selection.
My overall focus is on the home decor niche and this new domain is well within my focused niche.