Random Inventions

I feel like my mom, coming up with random inventions....But how hard would it be too create a gas pump that also included a vacuum? It'd be so helpful if I could vacuum WHILE I pumped gas. I probably wouldn't care as much that gas has risen a dollar a gallon in the last two months! ‪#‎JustSayin‬ ‪#‎ThisShouldBeAThing‬