So many different techniques. I use a one-piece drainable that lasts me about 3-4 days. I usually change it in the morning. I prefer to stand over the sink. I put down about 4 squares of toilet paper folded to catch any output. I basically press my abdomen against the sink so that when I wash the peristomal skin, all the soap and water can drain into the sink and not all over my crotch. This works well as the sink is about an inch below where the bottom portion of the wafer rests.
I can usually time putting the new pouch on without issue. I've only had an issue with output squirting all over the adhesive side of the wafer once or twice. And most of the time, if I have output when removing the old pouch, it just ends up in the sink. After the new pouch is in place, I toss the tissue in the toilet, hose down the sink with a Clorox wipe, and throw the old pouch in the garbage.
It's a basin-style sink so no countertop. And I'm lucky as I don't have needs for sprays, pastes, or adhesive remover. I just get a washcloth, nice and soapy, push between my peristomal skin and the wafer, and it basically peels right off, no adhesive remover required, no irritated skin. I lay the old pouch on the closed toilet lid, use tissue to get most of the crap off of my stoma, and then I wash the peristomal skin and the stoma. Sometimes you got to get up under the edge of the stoma as crap likes to hang out there. I then rinse the washcloth of soap, use the same washcloth to wipe the soap off of my skin and stoma, fold some tissue and wrap up the stoma so I can blot dry the peristomal skin with a towel. Once the skin is dry, I apply a skin barrier, blow it dry until it's not tacky, and then put on the new wafer.
Usually only takes me about 10 minutes from removal to cleanup. And usually right after a shower.
Bain