Now you tell them 
You are getting mellow Gina, I remember the day when a 'wallpaper' comment would have had you heading this thread off to the
I have hung my fair share of paper. Hate matching patterns and avoid that at all costs. I also hate overlapping seams. Butting is my preferred method. About other things: A scratcher along with DEP wallpaper remover (but you can also use vinegar and water) works best. Sizing is a must for plaster walls but should be used on all walls as it helps get paper on and off easily. Always prime bare drywall. Do not use cheap paper!! People, this is important. Cheap paper is, well, cheap. It is hard to put on and hard to take off so it cost more in time than you save. If you butt seams drop chalk lines, use extra paste at the seam, and a seam roller even if you are using pre pasted paper. Ditto for corners, use extra paste.
Do not paper with a person you intend to spend a significant amount of time in close proximity with in a romantic mode later (<cough> spouse ) I am also a fussy painter, prep is very important painting too.