Cracked windshield, what can / should i do?

Cracked windshield, what can / should i do? Came out of work today to find i have like an 8in long crack running from the top edge of my windshield strait down. No chips, splintering, spidering or anything like that… jjust a single hairline crack that like i said is roughly 6-8in long. I really [...]