Here is a few things from a handout for Customer-Friendly Words that I've used that really helps.
Down Payment / Initial Investment
Monthly Payment / Monthly Investment
Contract / Agreement Paperwork
Buy / Own, Purches
Sell or Sold / Assisted, Consulted
Deal / Value, Offer
Sign / Initial, Autograph, Okay, Approval
Pitch / Presentation
Objections / Challenges, Concerns
Cheaper / Less Expensive, Smaller Investment, Valve
Store / Showroom, Destination, Location
Customer / Clint
Looker / Prospective Client
No / What I can do is...