<prompt> Human: This is not the fund, but its similar: Vanguard New Jersey Long-Term Tax-Exempt Fund Investor SharesIs this safe? She says its fairly liquid.  <response>: I keep my emergency fund in a regular savings account, but I keep savings for vacations, new car, or other optional expenditures in a high yield tax free bond fund. I then us the extra cash from the bond fund for bonus retirement savings. 