Ten. More. Domains.
The best part (to me) about these ten new domains is that they are all for ONE PROJECT. I can handle that.
I would not want to buy ten more domains for ten more projects because there is a limit to how many different things that I can do (and it might be the same for you).
I did wait a week before registering these ten new domains. There were times that I was anxious that someone else might get the same idea and buy the domains before I could, but this is a pretty niche idea (at least in the way that I plan to execute it).
Maybe you're like me and you get new ideas for things all the time and snagging the corresponding domains has become a bit of an impulsive habit. If so, you're not alone.
I have a whole group specifically about buying and selling domains. Buying is fun, but you need to supporting your buying with some selling from time to time.
It's free to join: https://www.facebook.com/groups/domainflips