Be very careful with this approach. Frequent use of any of the PDE5's and you will begin developing a tolerance and they will stop working. In fact it's advisable that people take extended breaks to avoid it. Use it daily simply to have your veins pop a bit more, will yield less affective erections down the road. I abused these medications for like a year when I was trying to get my libido back in line and they almost didn't work anymore. I took a few months off them and they work again. But I only take when absolutely needed. It's well known that guys who use these drugs daily and heavily and up not working.
Yes, taking it daily is a bad idea.