When DD hit that stage, I bought a few Rubbermaid totes (the 18-gallon size), and would cycle a tote at a time, every week or so, storing the other two totes in my closet/laundry room/wherever there was room that she couldn't get to, or wasn't interested in getting to. Not sure if you allow bikes/scooters to be ridden in the house (my DD had "inside trike" and "outside trike", but if they are off-limits in the house, then I would also look for a different place to store them--back porch covered up? corner of the laundry area? rarely used closet? For DD, "out of sight, out of mind" was a HUGE thing for us--if she couldn't see them, she couldn't care less that they weren't strewn about the living room! And, it helped me feel better in control of things if I knew we only had 1 tote and 1 ride-on toy out at a time.
--Mimi
Mom to Lala (2004), Bonus Mom to Big Sis 1 (1991) and Big Sis 2 (1992)
Grammy to Big Kindy Kid (2011), Big Pre-K Kid (2012),
Grandbaby Appendage (2014), and New Baby Grandboy (summer 2017)