Tell you what.
What's an easy way to make a suggestion and make sure the other person knows your not trying to push them around? This phrase, "Tell you what", is an easy way to lead into a suggestion.
For example, you and your friend are trying to move the new sofa into the living room from the front hallway.
A: What's the best way to carry this sofa into the living room?
B: Tell you what. How about we open the doors right up and just carry it in.
A: Sounds great! Just wait until I check the doors.