Lettuce Seeds Blown Away

It was a warm day and the sun was out so I thought it a good idea to plant some lettuce seeds ready for a spring crop. All went well unit I opened the packet of seeds and a gust of wind just blew them away all over the yard! It was impossible to collect any up as they just flew away and are too small to pick up. I was livid as it was back to the shop to buy some more seeds.