Yard work can be enjoyable if you make sure you are prepared and safe.
Sunscreen Up - First things first. You may think you will be in the yard a short period of time and don't need sunscreen, but, even 30 min can cause your skin to burn, depending on the day, so it's always better to make sure you are prepared. Your mower could need a quick repair or a neighbor may chat with you for a bit over the fence, or it might take you longer to mow than you calculated--whatever the reason, if you have sunscreen on, you are sure to keep your skin protected.
Inspection Required - Another thing to do before you start your yard work is to inspect your yard. A hill can be hazardous when you are mowing, so you want to know where dips are to avoid tipping over a riding mower. Push mowers can have issues on different terrains as well. The can throw rocks or sticks, causing injury and you can push hard on a mower and have it bounce back over your feet which can be extremely dangerous. You also need to look out for insect hives. Some types of hornets can live in the ground and mowing over one of their hives can even be deadly in certain situations, or if you are mowing under a low hanging tree, there may be a hive hidden that you can see until it's too late. If you check around first, you hopefully can avoid disturbing any hive.
Buddy Up - When you are mowing or doing other yard work, it's always good to have someone else around in case something does go wrong. If you are pruning trees or shrubs, have someone around to help with a ladder if necessary or having someone else's eyes to see potential dangers is always good, too. So many times we can be distracted by the sound of a mower (or maybe music on headphones) that we may miss a potential hazard headed our way. Just having someone else outside may help keep something like that from happening just because they can see/hear what you can't.
Keep Hydrated - Keeping hydrated in the heat is a must. Not only can the equipment, insects and falls be dangerous, one of the biggest things that can hurt your body is dehydration and heat stroke. Remember, when you sweat you lose a lot of valuable body water. Keep filling it back up as much as possible. Alcoholic beverages however are not a good plan. The heat can affect how the alcohol affects you and you need your best judgment when using lawn equipment for sure!
Save Some for Later - Along with keeping hydrated, be sure not to over do it. Yard work is a never ending job, sort of like keeping a house clean. There will always be more to do, so don't try to do everything in one day. Exhaustion can lead to problems physically and can hurt your judgement, too.
Your time outdoors can be a lot more fun if you are sure to be safe, too.