Share 'Portable baskets'

Anyone have any ideas on which portable baskets are worth the money?  I have seen some homemade baskets permanent type baskets, but they look, well, crappy.  I know someone will say, "pick a target," but I am more inclined to grab something to throw in the trunk when I go to grandma's house (HUGE front yard) or to the park with my daughter, or even in the street in front of the house.