If your kids' college savings are not walled off in some kind of separate account, how do you keep yourself from raiding the kitty?
Stephanie Sadural Heincker is one mom who does not trust herself: She has an automatic deduction from each paycheck go into 529 college savings plans for her children, 2 and 4.
Heincker's own parents dipped into the money they had set aside in a savings account for her, so she ended up saddled with a lot of student debt.
"This is the least I can do to try to smooth the path for my kids a little bit," said the 36-year-old from Indianapolis.
The number of families saving for college is at an all-time high, according to new data released last month from Fidelity Investments. But a large portion of parents do not keep college savings separate, leaving money earmarked for education vulnerable to emergencies or luxuries.
Since Fidelity started measuring college savings rates in 2007, the number of families who said they are saving has jumped 24 percentage points, from 58 percent to 72 percent today. But among those who are saving now, only 42 percent use a dedicated savings account, such as a 529 plan.
Confusion, apathy play a role
The reasons for commingling savings ranged from simply preferring it that way to confusion about account types to apathy about getting started.
Financial experts offer plenty of cautionary tales about why this matters.