I'm going to list two, because they are both must-haves. I don't want you to assume you won't like the 1st one because of the artist, this album is requested by my mother who is 70yrs old, my brother who is 41yrs old and my 22yr old daughter (who I used to put to bed with this playing on a stereo in her bedroom when she was 3 & 4yrs old). Beastie Boys - The In Sounds from Way Out... This album is all instrumental, with the boys recording some of their olds songs as well as new ones live in the studio. It is such a chill, slow, sit and stare into a fire or an aquarium, take a Xanax and have a glass of bourbon on ice type of album. Great for background music to your living room, with or without company. This album will make everyone you know ask, “who is this? I like this!” by the 30-second mark of the 3rd song. You just can't go wrong with this album, no matter the circumstances. Portishead - Dummy... If you don't know, now you know. Just a perfect album especially if it's just you and your girl and a nicely rolled joint.