Here is our activity shelf where I put out things for Zilla to play with. It is in the living/dining/kitchen room. We don't have a lot of space for toys (go figure!) and most of the things I've read suggest that a few well chosen toys are better than a large random selection of toys.
The bottom shelf holds a box of balls, a basket with hand puppets and a wooden triangle multi activity toy. On the 2nd shelf there are board books and a sorting can. Not pictured is the soft play set (I switch between a church, farm and Noah's Ark) which can also be found on the 2nd shelf most of the time.
As Zilla "masters" or "tires" of an activity I can switch it with others that are waiting to be played with. Switching out the toys has been especially helpful on rainy days when we can't go outside.