Toy rotation always sounded so scary to me. I don't know why, but I could never do it. I looked up a few DIYs on how to do it and they all sounded so complicated! So with some serious effort (and a little smarts) I was able to cut the toys in half. The bonus? My kids are too young to fight with me about why they should keep it.
Step 1: Sell
I took all of the toys that my girls were never interested in or had no value in terms of learning. You know, just those noise makers! Sell, sell, sell! This will give you some money to buy toys that will get used (or a bottle or two of wine for yourself).
Step 2: Separate toys your child has matured from
There are some things like rattles (and this amazing piano barn) that the girls didn't play with anymore because of their age. But these things I wanted to keep for my next kids someday! I removed those second.
Step 3: Separate toys that are too mature for your child
Opposite of step 2 was a little harder because you have to think ahead. I had some tea sets that were beautiful but were just being thrown. They need to be a little older to understand, until then they just made a mess for me to pick up. Also I removed a toy that they drag behind them (as they STILL don't walk) Some other things were princess carriages and cars they don't understand how to use yet. These things go in a bin for later when we can have some real fun!
Step 4: Separate toys that they are tired of
These may be great toys that are still perfect for them at this age! But I swear when they see them again in a month it will be like a brand new toy! Who wouldn't want to save money? Put them in a bin to bring out 2-4 weeks later.
Make sure when you bring out the "new" toys, you put the "old" ones in the bin. Repeat!
I hope this helps you be able to confront the scary mob in your living room as well.