I get ahead and then usually the helpers help themselves (with my permission, of course). If I have some bigger beers, they usually last a while, but the session stuff usually goes quicker than I can re-stock. A keg can go in a few days with that stuff.
What I am finding is that I have an overload of craft brews that people bring as compensation....but they drink my beer instead of any of the crafts.
All in all, a good problem to have.