Keep it clean is the main priority, they are quite robust but do be careful not to catch the catheter, it would take alot to pull it out but it is uncomfortable if you accidentally pull it.
Whilst in hospital try too get two extra leg/ thigh straps.
Make sure the catheter is fitted correctly to your leg strap. The fastener should sit in the v of the y joint, many pictures show the fastener only round the pipe, this does not stop the pipe being pulled down.
My morning routine was close leg bag tap remove night bag. Remove straps from leg bag and tuck the tap of the leg back under the thigh strap.
Have a shower and using non scented soap or gel, wash the end of the penis and the first bit of the pipe. If applicable retract the foreskin and wash, remember to pull the foreskin back over the end, if you don't the foreskin can come up like a balloon. Use lube to get it back over and ice or frozen peas to reduce the swelling. A couple of days in and you will get more confidence in feeling and washing the area.
Once I had dried myself I would fit a new/ dry strap to the other leg and transfer the catheter to the other leg refit the dry leg bag straps. Alternating legs is recommended and it means you can dry the leg where the strap was.
Use a bag stand,bucket or bowl for the night bag, a bowl or bucket will save the carpet in the case of accidents.
I did get some stick for this but if you OH is attaching and removing the night bags buy her some disposable gloves and some chocolates or flowers, one suggestion was that marigolds count as flowers.
I wore pyjama bottoms at night to stop any tangles and also straped the night bag pipe around my ankle area to stop the pipe getting pulled out of the leg bag. The pipe should not come out if it is attached correctly.
A small squirt of instilagel or simalar will stop any discomfort at the end of the penis. I wore elasticated pants with short legs, briefs were be too tight and loose boxer shorts did not hold all the bits in place. Instilagel is a lubricant, anaesthetic and antiseptic ,I had a reaction to KY gel.
You may experience "by passing" when passing a motion this is where blood and urine pass between the catheter and the eye of the penis, slightly uncomfortable.
Talking of motions, avoid constipation and no straining to pass the first few motions, it could cause trauma to the urethral anastomosis / urethral joint.
Thanks Chris