This is basically how all british brewers did things a couple hundred years ago. Various strength beers were brewed individually and then combined to meet the local tastes.
Of course, they actually knew what they were doing with those combinations, not just tossing things together.
If you had something along the lines of hoppy ale, you might try blending those together to balance out the sweetness. I wouldn't make anything to blend that you wouldn't want to drink individually though. Otherwise, you could just end up with twice the amount of beer without wanting to drink any of it.