As above,
You can refinance into a LOC or O/S and use the money for whatever purposes, it simply means you will not be able to claim tax deductions on that portion of the loan.
I put money aside for when work and I parted ways separate from my investment funds.
Two things I noticed:
1. Money vanishes faster when you are unemployed at an exponential rate,
2. You need to have a defined plan, lounging about seems like a great idea, but it gets tiring very quickly and it actually ends up draining you.
I ran through my funds so fast, I was glad I hadn't used an open line of funds and had a fixed amount to spend otherwise I would have blown everything I worked hard for. It was quite a significant amount mind you and I have no idea how it disappeared.
It took me a month to adjust to no schedule, then spent 3 months chilling with my new born niece. Once that got boring (not my niece, just the doing nothing in between as all my friends still worked), I took up random jobs like 'speed dating stop watch guy' once a month, worked on some small construction work for myself and began to network like mad. Started to create games for myself to stay entertained.