Step 1) Beg For Xur to sell Gjallarhorn
Step 2) Wait For Xur to sell Ghallarhorn
Step 3) Complain that Xur is selling Gjallarhorn
Step 4) Buy Gjallarhorn from Xur anyway
Step 5) Continue grinding weekly activities
Step 6) Earn Strange Coins
Step 7) Realize Destiny is a waste of time
Step 8) Commit Sudoku
Step 9) Get bored of Sudoku and play some good games like the Civilization series