What is All Of Your Eggs In One Basket?
Having all of your resources in one place; putting your money or hopes or future into one thing.
'Eggs' are delicate, and if all of your eggs were in one container, and that container was damaged, you might lose all of your eggs in one quick and painful moment.
1) You don't want to keep all of your eggs in one basket. You might lose everything!
2) Tom had all of his eggs in one basket -- Yoyodyne stock -- and when the stock market crashed he was bankrupt.
The act of putting all your hopes into one one basket and when the 'basket' breaks, your 'eggs' will be broken.
Anime Expo put all their eggs into one basket with their online registration system.