As I mentioned in another topic, I am a little limited in time, money, and environment to work out. After some online research I bought a sandbag trainer as it looks like the cheapest and one of the best weighs to add some resistance to my daily workouts.
If you have not heard of this before the basic premise is you take some bags and fill them with sand or gravel. The gravel or sand filled bags can be put into a larger bag, which allows you to adjust the weight anywhere from 10 to 100 kgs. You can then do squats, deadlifts, lunges, cleans, swings, shoulder press, getups, etc.. The advantage of using a sandbag system is that it is super cheap, and the center of gravity of the bag shifts as you lift it up. Traditional barbell or dumbbell lifts are more difficult and you have to use your core more often because of the shifting weight. I am excited to get into it.