Take a bubble bath- Seriously....I rarely think to do this, but it is so enjoyable. Get a hot bath going, add in Epsom salts if your body aches from your strenuous week, and soak. Let the water wash over you and warm you from head to toe. Add in lavender or peppermint soap, or essential oils and any tension remaining should dissolve pretty quickly.
Light a Candle-Speaking of smells. candles are a great way to relax. Most people love lavender or vanilla scents. I personally prefer apple cider/cinnamon. It doesn't really matter what scent it is as long as you enjoy it. Relaxation is the goal. :)
Drink Tea- I've already discussed the health benefits of drinking tea, but another great thing about tea is that it just creates a sweet, calming atmosphere. Sip it slowly and mindfully. Enjoy the taste and pay attention to the flavors on you pallet. I personally just drink whatever tea I'm in the mood for, but there are teas specifically for calming the mind and body.
Create- Everyone has something they enjoy doing. Whether it be cooking, crafting, drawing or painting, writing, or singing, we all have a hobby that relaxes us. I personally relax by reading or singing. It makes me feel alive and calm at the same time. It lifts me spirits and boosts my self-esteem. Whatever it is that makes you feel the same way, do it.
And if all else fails.....
Stay in Bed- Sometimes, all we can do is lay in bed. If you are so exhausted that none of the advice above helps, then just keep your butt in bed. There is no shame in admitting that all hope of functionality for the day is futile. If this is you, burrow under the covers and snooze. The world will have to wait until tomorrow ;)