Oh, so we're gonna speak geek now, eh?
The two biggest errors I've been making in my coding since I got here:
1. It's "end if"; not "endif", darnit!!!
2. Forgetting closing "quotes.
Oh, and I'm so old, I once wrote an entire inventory management system with nothing but ones and zeros. Chiseled on a rock!
Seriously, the first system I was paid to write was in dBase III+ when it was fairly new. Until then, I'd been writing all kinds of stuff for myself in GWBasic. I still use QBasic to this day for quick and dirty stuff but am trying to get used to VB6.