how can I vote early? (Monday)

Is there any way that I can vote on Monday? I am travelling for work on Tuesday, out of state, and not sure how else I'll be able to do it. Does anyone know?

You should have obtained an absentee ballot. It may be too late. Call the Town Clerk or the County Board of Elections on Monday.

You can vote on Monday. 

http://www.essexclerk.com/_Content/pdf/Early-Voting-General2018.pdf

Per above link, you can vote in person on Monday in Newark or West Orange.  Link gives locations and hours of operation.

Have a peek at this handy thread started by a civic-minded poster:

https://maplewood.worldwebs.com/forums/discussion/absentee-ballots-m?page=next&limit=0#discussion-replies-3428320