[djchen]

You can auto-renew the domain. Even better you can manually renew it for the max number of years allowed by the registry (10 years for a .com).

[thatguy0900]

I would think it would be worse to renew for ten years as an individual. I'm not sure how I would even set a reminder for myself that I am confident would alert me appropriately in ten years

[gmays]

Renew it for 10 years, then set an annual reminder to renew it for 1 year to the reach maximum 10 years again. This way you have a 9 year grace period if you miss any given year.