Whenever you clean out a purse or bag or stoller or car or even sometimes a pocket in our house, you are almost assured of finding at least one Lego. And I am totally fine with that.
Years ago I started ordering boxes of Legos on Ebay thinking that it would be cool to have a toy around that our friends' kids could play with when they come over (OK, I thought maybe I'd want to build something, too.)
Now that Arthur is old enough to play with Legos (Noah plays too, even though it's a little beyond him), the Legos are out in force and Nathan has gotten into the act, buying lots of boxes on Ebay, plus some great sets for cheap.
Right now we're busy sorting the Legos by color and searching for a good way to store them: containers need to be clear, have lids, fit in the drawers under the train table, and not be too deep. Hopefully we can actually get the guys to keep them sorted. Arthur seems to really like it that way, and hopefully it will be a good way to get Noah to learn his colors.
Buying the sets on Ebay is definitely the way to go, because Lego sets have been getting way too specialized in the last 10-20 years -- so many of the pieces are highly customized for the specific vehicle or building that it's designed for that it's hard to build anything else out of the parts. (I wrote a story about BAYLUG 10 years ago that touched on this.)
And if I keep practicing my building skills, I can use Lego as a way to play with my kids and as a creative outlet, kind of like this guy.