Whether to Keep My Entire Online Earning On My Paypal Account Or Not

I would like to solicit the opinion of my friends here in myLot on a personal decision that I would like to make. I am earning a little from my online job and I am planning to keep the entire amount until such time that it reach the amount that I needed to buy the thing that I really wanted to have. I have my permanent job so whatever I earned online, I just want to keep it. Now, my dear myLot friends, is it safe if I just let my earnings stay with my Paypal account or I have to transfer it on my bank account? How do you manage you online earnings? Please share your strategy regarding this matter. Your inputs will be highly appreciated. Thank you.