I think the pail bag should be big enough as long as you don't plan to pack tonka trucks and the like.
Just got my whale bag for the pool in the mail today and yes it is huge!! Great though for a family of 5. I can't wait to use it.
"Someday, I am going to go to bed without toys on the floor and sippys in my sink. Things will stay where I put them and I can have nice, fragile items on display. But when I do, I will look around with a wistfullness in my heart and miss the days where vibrant imaginations ran wild and there was evidence of life happening around me all the time!"