? About getting/keeping certifications while traveling!

I just wanted to know how do those of you who travel exclusively keep your certifications current and or get new ones when you are not staff at a hospital. I have been on one travel assignment and about to start another however I have been offered a position at a hospital and I think I need to take the job due to my BLS about to expire in June and I want ACLS and PALS and the position will allow me to get both certs. very soon.