In her latest Color of Money column, personal finance columnist Michelle Singletary asks: What financial foolishness made you become money smart?



People weren’t shy about sharing their mistakes. Student loans were a big factor for many.



Others shared thoughts on money-lending habits.


Some Twitter users regretted not planning ahead.



Related Color of Money columns:

Financial decisions can have long-lasting effects 

Michelle’s Mailbag: Don’t lend money that you want back

When you get the urge to splurge just stop, drop and roll

Grad school, a leg up – in debt