You can also purchase 10% off coupons to add to the discounts from eBay and use and additional the 5% off if you have a Lowe's card.

I tried applying for a business credit card through Capital One, and their not happy with my current income.

I would make sure I didn't max out any credit cards as a dumb college kid, and all that money that went into clubs and nonsense would go to into buying my first property at age 19 instead of age 23...

I have a separate bank account and credit card for the rental LLC and flips that I do and I opened a separate mint account that links to just those accounts. 

The problem is getting FHA approved as I just recently got a credit card and trying to get my credit over 580.

Originally posted by @Matthew Paul:They  figured out how to beat the coin changer  The machines are credit card only.

Some banks offer Personal Line of Credits, the rates aren't great but better than Credit Cards for the most part and are ideal for renovations and if you don't use the Line Of Credit you pay no interest.

If you have to charge late fee to avoid not being able to enforce this in the future, you can charge the late fee and give the tenant a gift card to the local grocery store or something like that.

Don't take on any more credit cards.

Please, don't follow the "gurus" who will tell you take buy 4K houses on your credit card or who promise that you can get rich overnight.