A Montessori shelf has 8-10 carefully chosen activities. Children pick what draws them, focus deeply, and put it back when they're done. You can do the same thing at home with the toys you already own.
Too many toys, not enough play
The overflowing toybox
You open the playroom door and toys spill out. There are bins on bins. Your child walks in, picks something up, drops it, picks up something else, drops that too. Ten minutes later nothing has really been played with and the floor is covered.
It's not a discipline problem. When there are too many choices in front of a young child, their attention scatters. They can't settle. And honestly, you feel it too. The mess is constant and the cleanup never ends.
More toys doesn't mean better play
It sounds backwards, but toddlers given fewer toys play longer with each one and in more creative ways. When the options are limited, children actually dig in. They stack the blocks higher, invent a story for the doll, figure out a new way to use the ball. The play gets richer because there's room to focus.