A wise investment. Pays for itself the first time you need to use it
Get something with at least two circuits.
One for your fridge or microwave. don't run both at the same time, run the fridge to keep stuff cold and unplug it when you need to use the microwave
Second circuit for lower power stuff, like TV, some lights, a fan, keep your phone charged, etc.
And extension cords. Lots of extension cords