Buying runes in shops and then selling them on the Grand Exchange is always an easy and quick cash. Particularly reselling soul-runes, you can earn a quick 13-14x gain from the investment you make right now, and that's not a bad deal. Spend $40K at a store, get like 550K back at the G.E. kind of pog.
You can also use your runes for Vis Wax which is going to sell for large amounts of money right now With the right combination, you could make up to 1.8M profits every day particularly if you are using store-bought runes. By doing this, you'll be able to pay the majority of your membership times if you utilize Bonds and it doesn't take much time to make.
With that kind of starter money, you can also start making cannonballs if have the requirements to do this, in order to roughly double your investment.
You can also try melting gold bars if you've got already completed the Family Crest quest completed for similar earnings per hour, and it's even more secure.
If you possess a decent level of magic (really, 60-70 is plenty to accomplish this) Also, protect yourself from Melee and the 89-Slayer, which I'm not sure if you have as well, you could also crash and basically steal from the bots of scorpions that are corrupted by tagging some scorpions with magic attacks, and dragging them towards you, and then using the bot to help kill them lmao. Galaxy Brain has seen some people at a low level do that.
The process of killing specters that are not yours is profitable if you have an impressive 63 people to slay. I recently went to finish a job for my alt, and was surprised by the profit I earned, especially considering that it's very basic content. You do not require any super-duper gear to do it.
Making incense sticks from weed appears to be a good moneymaker as there is always a demand for these... provided you can find the materials for it at a decent price. Although they've been plummeting in recent times, might not be the best time to be selling these.
The highest quality skilling pottery urns is a good option since there's typically a high demand for them. There's nothing to lose especially if you make your own clay. And you could even use magic notepaper to accelerate your "banking procedure" of urns that are finished at very little cost. This might sound boring but...
Cleansing up the mess of a garden, or making unf potions may also be a lucrative money maker, especially during Double XP weekends, because many people jump into it without preparing, and because they can't be bothered to finish the whole thing so they buy unfinished potionsor when they don't, they'll buy clean herbs instead of the dirty ones since it's quicker. Be sure to test and verify prices before doing this though. Also, be prepared to become bored in one or two hours.
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