Dear purrkat,
After the TURBT, plan to take it easy for a day or more and stay hydrated. You may be sent home with some prescription medicines. In my husband's case, he received an antibiotic, prescription pain reliever and pyridium (relieves bladder discomfort and temporarily causes urine to be orange. Droplets can stain surfaces.)
Each TURBT recovery time will be different and seems to effected by how much area is, as my husband calls it, scraped.
His cancer type, CIS, appears as more of a diffuse rash growth and covered a good bit of bladder at the time of the first TURBT. He came home that time with a Foley catheter and pretty much stayed in bed until the catheter was removed.
The next two TURBT's involved less "scraping", the catheter was removed in the recovery room and he was able resume most of his usual activities, although he did have instructions to limit lifting anything over 10 pounds for awhile.
He took leave or teleworked from home the day after those procedures to avoid any urgent bathroom situation during his 65 mile work commute. When he did return to work, he carried a disposal urinal in a brown paper go bag just in case he had to, well, go, during his commute. There is apparently some finesse required but you find ways to do what has to be done.
You are likely to hear from other forum posters about their TURBT recovery experiences. Keep posting with any questions.
Best wishes.