DH is encouraging me to go visit our friends in FL with LO. I am in desperate need of some sun and the ocean, and our friends are dying to meet C. It has been a long 3 months with everything with my mom... and traveling is therapeutic in many ways for me. Anyways, I'm planning a trip for next month. I'm a frequent flyer/traveler, but this will be my first time traveling with an infant. I'll also be by myself! Some questions...

Should I bother packing the car seat base for when we get down there, or should I just learn how to install it in the car with the seat belt straps (which is an option with the B-Safe seat)?

LO will almost be 5 months old. Is sunscreen a definite no no? I'm planning on buying him a long sleeved rash guard and hat, but I wonder about his hands and feet

This is probably a really stupid question, but is it OK to introduce him to a pool? He loves the bath, and I bet he'd love for me to take him in the pool... but are the chemicals safe for his skin at that age?

Any other suggestions about a beach getaway with a 5 month old? Or travel suggestions in general?