I'd avoid the shed if I were you, the floor is a trip-hazard worthy of a Home Alone movie, which can only mean that Jen's trying to do some potting and has scattered more seed on the floor than into the pots.
Shame she's not got herself an Handy Seeder. All you need to do is fill up this clever little contraption with your chosen seed, then use the pressure sensitive release button to place as many seeds as you need into each pot.
Not only does the Handy Seeder make quick work of your seeding, but it means that you won't be out in the garden at 10 at night still trying to sweep up all those dropped seeds - unlike poor Jen.