I just pulled in $500 the other day by signing up for an American Express card for my wife, and a Chase Ink card for my business. I’m planning a trip and we are paying for it all by using the sign-up offers. There are also no annual fees on these cards. So I recommend taking advantage of a few signup offers and you’ll easily make $100 (if you qualify).
As first reported on by Rockstar Intel, there's an easy way to make around $500 every 2 and a half hours or so. To do so, all you need to do is complete the first 6 story missions in Red Dead Online. This will earn you around $500 each time, including the treasure maps you'll be awarded. Then, all you need to do is delete your character and start again. Your money will carry over to the new character, then you can just keep repeating the process. It's one heck of a grind, but we've confirmed it to be the best way to farm money currently.
Take advantage of tax laws if you're self-employed. Money saved on taxes is still money saved. You may be able to deduct many of your business expenses (use of your home, use of your car, office supplies, etc.) if you keep good records. You may also qualify for tax breaks, such as deducting your health insurance premiums on your tax return. These laws are in place to encourage commerce and business growth, so don't neglect their benefits especially if you want to make money.
Sell your online store. If you’re desperate to make money online, you can build an online store to sell for a profit. If you create a beautiful store, include well-written copy, create a successful ad to land your first few sales, you may be able to sell it. You can use Shopify’s Exchange platform to sell your online store to other entrepreneurs. That’s just another way to make money fast.
If you don’t already have a job, you can try your luck with a day labor agency in your area such as Labor Works or People Ready. Generally, these jobs are of the low-skill, low-pay variety — construction helper, mover, retail or warehouse work. Arrive early in the morning, and if you’re chosen for a job, you’ll work that same day and receive payment at the end of your shift.
Check with your local bank to see if they're giving away cash bonuses for opening up accounts. Banks run promotions like this all the time, so grab some real cash quickly if you're in need. It won't break the bank (no pun intended) but it will give you a quick $50 or $100 -- maybe even more -- when you really need it. You might need to deposit a minimum amount of cash (usually in the thousands) in order to qualify for these types of accounts (but not always).