Too many toys

Get rid of your toys.

No, seriously,  I bet you have a zillion toys. Holdovers from when your child was younger, a bajillion stuffed toys and things given by friends, or even purchased by you, and stuff you probably don't even remember where it came from.

This is best done when the child is out of the house or sleeping.

Go through ALL THE TOYS.

Sort them, and discard any that are damaged, irretrievably disgusting or missing pieces. If you can't bring yourself to discard, box them and hide the box where even you don't go often.

Evaluate battery-operated toys. Does the toy need batteries to function best, and if so are you really replacing the batteries as needed or just letting the thing sit around?

Also sort out any toys that are just really annoying. Like, ones that require balls that always roll under the couch or ones that make really stupid noises or talk for no necessary reason. Trust me, most toys don't need to screech or talk. Even supposedly "educational" ones. If the problem is something like the balls and couch thing, decide if that toy can be placed in a different room with less chance for the balls to become lost or if you can make a barrier.

Sort your remaining toys by type.

Stuffed animals can be good decorations but do you need a lot? Blocks are good to have a lot of, but not stuffies. .. so either bag em, or find a place to use them as decoration where the child can't reach. Then, only make a few at a time accessible.

Take the sorted boxes of toys and store them out of site but in an accessible area that the toddler cannot get into (NOT THE SAME PLACE AS THE DISCARD BOXES). Have only one box out for play at a time.

If you keep the TV on all the time, or give your kid a tablet to play with... try not to. Turn off the TV for the day, and place the tablet in another room. If the child is particularly addicted to the tablet, it makes it even more essential that he or she doesn't see where you put it... it's best if it just simply isn't there that day.

Practice some patience as he or she figures out what to do with the limited selection.

You'll enjoy spending less time picking up and sorting toys, less mess to trip over, and the toys will be more thoroughly enjoyed. You'll also get a better sense of what toys your toddler really doesn't like at all.