One of the biggest mistakes in Scrabble
players make is to not save tiles for bingos. The only way to get more bingos or any at all is to strategically save seven tiles.
Most common letters in 7 letter words
are E, S, I, A, R, N, O, T, L, D. Get rid of duplicate letters. Blank tiles are very useful for bingos. The best way to play Scrabble bingo words is by collecting letters for the most useful bingo stems like AEIRST.