Free Money
They’ve closed it now but a couple years ago I discovered you could charge an american express ‘serve’ card with a regular credit card by going to walgreens (or maybe it was rite aid I forget). I have a credit card with 1.5% cash back.
Every month I put $10K on the serve card (that was the limit) and then just paid my cc bill with it. I cleared $150/month for free.
Story credit: Reddit / PM_ME_BAY_AREA_GIRLS