I don’t think it does. Literally, une grasse matinée means “a fat morning”, but if someone says “J’ai fait la grasse matinée”, they are saying “I slept in”. 

I’m not exactly sure what you want it to mean for the whole day. If you wanted to say “a lazy day”, then I think you could say “un jour  paresseux”. Or you could just say, “Je me sens très paresseux aujourd’hui.” Which means, “I feel very lazy today.” 

If this isn’t what you mean, send me another message and I’ll try to help you out! Sorry this took so long to get back to you! 

(Source: another-cough-syrup)

Yes! The one I use most often is this: http://www.laits.utexas.edu/fi/home
It’s great if you’re just starting out and teaching yourself. It has links to worksheets and there are exercises in the book as well. :)

I also found this when I was looking. The workbook seems to be pretty good. But I’m not sure about the Culture or anything else. (Some of the links in the culture part didn’t work for me. I’m not sure why..) So you could try that too. You can’t use the book for this one though, you would have to buy it, and I don’t think it’s really worth it. 

You can also check at your local libraries to see if they have any French textbooks in the Foreign Language section. They can be hard to find, but it’s wonderful to have, even for a little while!

I’m just going to list a few that I found that may be helpful for you:

• This website has games, quizzes, and exercises to help you learn French. 
• http://lightandmatter.com/french/ - This is actually really cool. I like the set up of the textbook and it’s free! It has reading sections, exercises, pictures.. basically everything you could need. 
• http://go.hrw.com/gopages/wl-fr.html - This has a few different textbook activities, culture, vocabulary, quizzes, etc. It’s pretty nice. (At my school, we use the Allez, viens! books.  The culture may be a little out of date because the book isn’t recent. But it’s still not bad.)
• http://www.wordreference.com/ - This website is my best friend when it comes to writing in any language. If you don’t know how to say a word, you can just look it up, and it’ll tell you what it is in that language, if there are any expressions that include it, if members have posted things in the forms asking about how to say something including that word, etc. It’s an advanced online dictionary. 

There are also some awesome Tumblrs to help people learn French! Some of them that I really like are:

• http://bonsmotsfrancais.tumblr.com/
• http://awesomefrench.tumblr.com/
• http://frenchlearning.tumblr.com/
• http://whatnottosayinfrench.tumblr.com/

I hope this helps! Let me know if you need anything else :)