How to get to Heaven

A Sunday school teacher asked the children in her class, "If I sold my house and my car, had a big garage sale and gave all my money to the church, would I get into Heaven?"
"No!" the children all answered.
"If I cleaned the church every day, mowed the yard, and kept everything neat and tidy, would I get into Heaven?"
Again the answer was "No!"
"Well", she continued, "then how can I get into Heaven?"
A five-year-old boy shouted out, "You gotta be dead!"