Lately, whenever I turn on the fan (not even the AC necessarily), a tangy smell like Elmer's School Glue or caulk comes out of the vents. The mechanics at Firestone don't recognize the smell.
Many salon workers face low wages, so tipping is their means of making ends meet. (And on that note, if you suspect your salon has poor conditions for its employees, report it to your local public advocate's office.) Tip 20% for a standard manicure, more if you feel your service was exceptional.
You should also know that gel manicures may have a negative effect on the health of nails, especially if yours are already damaged or prone to cracking and drying. To remove the polish, nails must be soaked in acetone.