Check out some of the latest MakeUseOf discoveries. Most of the listed websites are FREE or come with a decent free account option. If you want to have similar cool website round-ups delivered to your daily email, subscribe here.

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Sandbag Fitness – If you are skeptical about spending hundreds of dollars on fitness equipment, Sandbag Fitness is a great alternative. As the title indicates, the website teaches you how to stay fit with nothing but a sandbag. It includes lots of workouts specifically using a sandbag that can help you to stay fit. Read more: Sandbag Fitness: Tips To Get Fit With Just A Sandbag

		Computer Science 101 – With all of the innovation currently going on in computer science, many of us often get curious about finding out more. The Computer Science 101 is an excellent way to do that where everybody, even people with no computer science knowledge or experience, can take an online course. Read more: Computer Science 101: A Free Computer Science Course From A Stanford Professor
		ExpertFlyer – Are you a frequent flyer who wants to constantly be kept in touch regarding the availability of airline seats? If yes, then you should check ExpertFlyer. ExpertFlyer does not sell tickets. What it does is let users know when to buy tickets, online or offline and keeps users up-to date about seat availability. Read more: ExpertFlyer: Get Airplane Seat Availability Alerts
		Better Popup Blocker – Even though Google Chrome has a built-in popup blocker, it still misses out on a lot of annoying popups such as alerts and confirmation boxes that may be hidden. Better Popup Blocker is exactly what the name suggests, a tool that blocks popups better than the default tool in Google Chrome. Read more: Better Popup Blocker: Better Way To Control Popups On Chrome Browser
		Context – If you are a heavy Chrome user, you probably have lots of extensions installed. However, none of us use all of our extensions all the time and they just sit there eating up screen real estate. Context helps you manage extensions by sorting them into groups so you can switch from one group of extensions to another with a single click. Read more: Context: Sort & Manage Chrome Extensions Into Groups

These are just half of the websites that we discovered in the last couple of days. If you want us to send you daily round-ups of all cool websites we come across, leave your email here. Or follow us via RSS feed.