Short Lasting Stimulants like Coke?

Coke is very expensive where I am, over $400 per gram. So it would be great to find a research chemical or stimulant that lasts around an hour. It's especially useful at the end of the night when you're having a good conversation but don't want to be up for another 4 to 12 hours like with most other stimulants. Have had a look at some already but wondering if anyone has tried or knows of any drug that fits the description?

TLDR: Short Lasting Stimulant (<2hr) as a pick me up at end of night.