"LOSE" and "LOOSE"

"Lose" means to fail to win or misplace. "Loose" means not tight or free. Ex.: I don't want to lose my keys. The button on my shirt is loose.

"ACCEPT" and "EXCEPT"

"Accept" means to receive or agree to something. "Except" means to exclude or leave out. Ex.: Please accept our apologies. Everyone is invited, except for Tom.