DH just put together our nursery furniture! Yay!

Before I put away DS's clothes, I want to wash them. I was about to throw them in the wash last night and then I realized that maybe I shouldn't be washing them with our normal Tide detergent. So what should I purchase? Dreft? Tide Free & Clear?

Also, can you use fabric softener with infants? DH couldn't live without fabric softener. So do you just wash your clothes and LO's clothes separately?