Sometimes 1 Is Better

Sometimes one is better than three or eight. One is simple and easy to keep track of. Five and nine are much more difficult to manage. Coordinating one is easy and requires little or no effort, while trying to coordinate seven can be difficult and cumbersome.
This law of nature applies to everything from hats, fishing poles and shoes, to people. It's of course much simpler and less stressful to coordinate 1 person than it is to coordinate 2 or more.

With this in mind, I'll use hats as an example:
If you own more than one hat, you put yourself in the position of having to make a choice about which one to wear each time you go to put a hat on. You'll have to keep track of all the various hats you own and manage the space where you keep the hats. There's also no doubt that over time, you'll end up having a favorite hat and that hat will be the one you'll always want to wear; even though you have several other hats. You'll now feel somewhat obligated to wear the other hats even though you really don't want to. But since you have all these other hats you feel like you should wear each of them at least every now and then. At some point, you'll start resenting the other hats because you have to wear them sometimes when you really just want to wear your one favorite hat. Additionally, these other hats will require at least some level of maintenance and upkeep, and that's just your hats. Throw boots, purses and guitars into the equation and you could spend half your day trying to decide which of your many personal items to wear, use, or take with you. The net affect of having too much stuff is, it complicates life. How much simpler would it be if you only had one hat to worry about.

Note: This is not meant to be a parable: I'm actually talking about simplifying life by reducing redundancy.