This is such a great lil device. I would recommend standing up straight only...not using it while kind of hunching forward or backward cuz it will make a mess. But it really helps when you don't want a diaper, you can't find a bathroom, and your bladder waits for no one. It's kind of hard to fit back in the tube. I do think the tube is better because it utilizes less space but if you have a hard time, just use a ziploc, newspaper bag or something. I'm not sure just rinsing is sanitary enough so I used clear vinegar and water, then let air dry. Def'ly will get a couple more for extras.