Like everyone is saying, disposeables are easyer, specialy for you younger guys hideing from others, but as far as absorbancy you can't beat cloth, as long as you don't use some skinny peice of material.
Get an old bath towel, as long as it fits halfway around your waist, it will work, and some small hand towels and stack them in the center, you can pretty much choose how much absorbancy you want, fold it and pin it on, but you do need plastic pants, preferably much bigger than you are, but no so big the leg gathers don't hold on to your legs, this is the part where the toddler plastic pants won't work, you all know how big they look on a little kid, there is a reason for that, you need the room.
And just start wetting, no matter how much or how fast you wet, they will take it, the whole diaper becomes your absorbancy, and after you done and want to get rid of it take it off and put it in the bathtub, and keep rinseing it untill the oder is gone, either hang it to day or wash it again in the washing machine.
I use this system almost everday after my disposeable starts to leak, enjoy B
If you haveing a problem with oder, just add a little white vinagar to the rise water, it will nutralize the urine smell, got this tip from a guy who wear nothing but cloth....