I've recently gotten a 2012 MacBook Air 13". It is wonderful, however, I've been stressing about the life of the SSD. I understand that Apple probably would not sell an SSD machine with defaults that would ruin the SSD; however, I have some concerns.
Like all Mac laptops, by default it uses a hybrid sleep mode, so every time I close it, it writes up to 8 GB to the SSD. This is many, many times a day -- I'm in college, and I am always going to various places on campus, and the laptop almost always comes with me.
In addition, the default Time Machine configuration stores snapshots locally, and eventually, is allowed to fill 80% of the drive.
Both of these seem somewhat problematic to me -- sleeping and waking 10 times a day might write around 25% of the SSD capacity a day, and if I do let the mobile snapshots take up 80% of the drive, the static data on the drive will increase write amplification due to the SSD's wear leveling.
Am I worrying over nothing, or do I have a legitimate concern? If yes for the latter, what can I do to improve the life of the SSD?