Beginner Gardening: I grew a bunch of cacti...now what?, 1 by TDP

TDP wrote:
Hi everyone,

Earlier this year, my 4 yo son and I bought a packet of assorted cactus seeds to grow. I figured that only a few would make it but as you can see from the photo, we did better than I could have hoped. Now they average just under an inch in height. I still have them helter skelter in this container that I cover with plastic and mist them every few days to keep the soil slightly moist. How long do I leave them like this? When should I start repotting them in small clusters? When do they not need to be moistened every few days? Should I do anything different over the winter? I want to give some to friends but don't want the gift cacti to promptly die.

Thanks for your guidance!