This topic is about how often people change their ostomy bags, whether daily or weekly, and how this choice affects cost, comfort, and personal preference. Here are some insights and advice shared by others:

1. Insurance and Prescription Limits:
- In the U.S., the typical allowance is 20 pouches per month, but some people receive fewer than they need.
- It's possible to get more supplies with a "letter of medical necessity." For example, one person was able to get more than 20 bags per month by documenting high output and having two insurances.

2. Change Frequency and Stoma Type:
- People with short-bowel or very acidic ileostomy output often need to change their wafers every 2–3 days.
- Many with an ileostomy change their pouch daily or every other day, but leave the wafer on for 3–5 days.
- Those with a colostomy who irrigate can keep one pouch for up to a week, as irrigation and a washable plastic lining help keep it clean.

3. One-Piece vs. Two-Piece Systems:
- For two-piece systems, the wafer usually lasts 3–5 days, while pouches can be swapped as needed.
- Users of one-piece systems, like the Coloplast Sensura Mio, often change the entire system daily, using only a barrier film wipe for skin preparation.

4. Products, Manufacturers, and Accessories:
- Hollister offers the "New Image" line and a generic "2-bag system."
- Coloplast provides "Sensura Mio" one-piece bags and cut-to-fit flanges.
- Skin prep options include barrier film wipes, stoma powder, Eakin seals, or stoma paste.
- Press ’n Seal wrap can be used to keep the appliance dry in the shower.

5. Skin Protection and Comfort Tips:
- Some people feel healthier with daily changes, while others avoid it to prevent skin damage from adhesive removal.
- Cut-to-fit wafers are useful for stomas that change shape.
- To protect the wafer from water, cover it with Press ’n Seal or use a low-pressure rain showerhead.

6. Odor and Gas Control:
- Pouch filters can clog within a day, leading to gas buildup that may require burping or a pouch change.
- Rinsing pouches with water and additives, and using in-pouch deodorants, can help manage odor.

7. Cost Considerations:
- High drug prices and supply costs lead many to extend wear time, even if they prefer more frequent changes.

8. Personal Preference:
- Some people feel cleaner and less irritated with daily changes, while others find it inconvenient and prefer weekly changes, especially if their skin tolerates longer wear.