Personally, I am NOT a fan of any infant equipment such as exersaucers, swings, jumpers etc. as I feel they severely limit the child's ability to explore their surroundings and environment.

I think that sometimes the over use of those types of things hinders a child's natural development and can delay walking, standing, crawling etc.

I would use gates as well. I would also consider using furniture such as shelves or taller toy furniture such as kitchen centers and such for room dividers.

That way each toddler and/or infant has a safe place to move and explore.