Plastic lidded totes work for us. Easy to rotate so there are always new toys out, but also keeps organized and prevents too many from being out at once. We took a lot of the big chunky toddler legos, coloring books and crayons, and depending on where we were going, sand and water toys.
For us the biggest thing we took was the pack-n-play for sleeping. Took up a lot of space!!
Brian, Stacy, and the girls (8 and 5)
2011 F-250 CCSB 6.7L PSD 4WD
2013 Solaire 269BHDSK