We love Scuttlebugs. We have the Bumble for my oldest, who has outgrown it, really, but she still loves it. My youngest has claimed it for herself though, and it's the only toy in the house that they actually fight about on a daily basis. I kind of wish there was a bigger Bug, for my almost 4 year old.
Scuttle Bugs have a simple 3 step folding system which allows the Scuttle Bug to be folded and unfolded in seconds. That's perfect for storage or travel, and I've even put it in my hand luggage on flights!
It is lightweight, compact and has smooth wheels making it perfect for indoor use as well as outdoor use. After two years and two little girls, it's still good as new. It's a fabulous Christmas gift, should you be looking!