You never really know what you have until it's gone...that saying goes for people but also for backyards, in this case.
It may seem a bit silly, but backyards can become one of your favourite places to hang out in when you have nowhere else to go. Take mine for example, I can do everything there such as reading, homework, have barbeques, parties, camp and work out to my favourite music.
If you purchase a chair where you can lie down in that has a shade, then you're practicaly hitting two birds with one stone. You can use that chair to relax and read, go on your laptop and at the same time you can be tanning next to your swimming pool. Remember though, always wear lots of sunscreen and do not tan for too long because there is nothing healthy about a tan.
When you feel like partying, but you really can't bothered going through the whole process of calling a taxi, staying out till late waiting for one to take you home and...well you know the rest. You can simply have one at your house by calling friends over, buying drinks, buying some finger food and just having music play while everyone interacts.
Also, for those outdoor lovers who are too scared to actually go outdoors, then grab a tent and hook it up in your backyard so you have the experience of sleeping outside, but you can do the rest inside with the whole shower, food and tv.