I just hit 94 the other day and was 20 Sunday night.
My method, I buy maples, fletch all into long bows, string them up "preferably on accounts that don't have 99 fletching" So I had to make a few accounts.
Buy a mud staff, lots of body runes, and curse till 55 and curse alch to desired level. If you fletch your own maple longs, and buy natures, the loss isn't any where near bad.
I'm currently getting 94 on another account using this, was 70 yesterday now 80 so I should have 94 in another few days. i should of kept track of money spent but I hardly ever do.