ANYONE KNOWS QUICK AND EASY WAYS TO EARN FAST MONEY?????!!!!!!?

i already know about blood donation. i need to save up alot of money fast to help my Grandmother pay for her eye surgery because the insurance didn't cover the whole bill. i already have a full time job but of course i need more this is why i'm asking for you guys help. i need things like blood donation and dog walking. you know legal stuff lol. i'm very open minded so hit me!