It was easy - I just filled out the forms and paid the gov what they want. Other comments mentioned services that file the LLC for you and that's valid - I chose to just do it "manually" through the .gov websites in WA. Not sure your background but I'm a WA resident so there wasn't any difficulty with stuff - my only caveat (since I rent my house and contractually cannot run a business from it) was the Registered Agent/Principal Address service. But a company can fulfill those roles and it's a non-issue.