Active Rest Day
Find something fun to do outside or try a new activity/sport.
Why should we avoid legumes and dairy on a Paleo diet?
The reasons for avoiding legumes are the same for avoiding grains: they were not a food consumed throughout most of our evolution, they contain large amounts of lectins (which is why uncooked beans are toxic, cooking reduces but doesn‘t eliminate these), antinutrients, and a large amount of carbohydrate. We avoid large amounts of carbohydrate in the form of grains, legumes and dairy in favor of the more nutrient dense fruits and vegetables. By doing so we can ensure plenty of vitamins and minerals in our diet and keep insulin levels stable.
As for dairy, Mark Sisson just put out a pretty comprehensive article on it so I’d take a look at that.
The Definitive Guide to Dairy
My advice for those who want to see if dairy works for them, try eliminating it for 30 days and see how you look/feel/perform, then reintroduce it and reevaluate. If you feel better without it, keep it out. Anybody that is not already quite lean though, should avoid dairy altogether until they are fairly lean. Dairy can be of use to those trying to put on lean mass, as it is quite an anabolic food, but should be avoided if trying to lose weight.
Also, go for the full fat, preferably organic or raw if you're going to drink dairy.