I use the CleanStream shower system. It's quick and easy and have only run into problems maybe 2 or 3 times ever, but that's because I was in a hurry and wasn't paying attention to how much water I was putting inside me.

Yes a high fiber diet should keep you fairly clean but for me it's a psychological thing. I feel better knowing that I am clean as a whistle, which allows me to be present and focus on pleasure, not poop.

Link to the shower system I use: https://www.amazon.com/dp/B002FCN7Y2/ref=redir_mobile_desktop?_encoding=UTF8&aaxitk=b013722e3a57cd5115e49e15000d6ea9&hsa_cr_id=4655777310701&pd_rd_plhdr=t&pd_rd_r=0b76a952-1ef6-4f9c-ac5c-87ae0ebd4a53&pd_rd_w=kzHZz&pd_rd_wg=fT1wR&ref_=sbx_be_s_sparkle_td_asin_0_title