If you want to go legit with the neopoint saving and your account is aged, a good thing to increase your neopoints is Food Club, just copy/paste (you need an account to see links) daily and see your income grow. For me, that's the easiest way to make more NPs. Also keep visiting Trudy daily, gives you like 300k a month in total. You can also try RS but it's a bit slow in therms that now a days people don't really buy a lot of stuff and it can take months to succeed in selling a MP decently.