The shower is CRAP. Water pressure so low/unpredictable that you have to move around to get wet at times, and the temperature is verging on dangerous - either scalding hot, or just hot interspersed with freezing. Less than 3 minutes is not achievable (as you have to play dodge the 2nd degree burn for probably two thirds of the time in the shower).
We don't have a travel cot or playpen and the shower is in a downstairs cloakroom, which is tiny. The only place we can put DS safely without being watched is his cot, two flights and 2 minutes up from the shower (maybe 60-90secs if running?).
He has a habit of falling over and bashing his head on the sides of the cot at the moment (wobbly walker) so he can actually, occasionally, do himself some damage.
A 5 minute shower would be literally rinse with water, bit of shower gel in key areas. 10 minutes might include hair wash and condition (if you get lucky with the water temp). To add in shaving etc, you're looking at up to 25minutes - and that's without any just standing and relaxing.
As a comparison, in my mum's shower I can do all of that in 10 minutes - and I love every minute of it. When we stay there, I love being able to shower every morning as there's always people around to watch DS.
I can and do occasionally use a shower head in the bathroom for what I call a 'cheat's wash' - but this relies on DS still being quiet after going to the loo in the morning. And last week, I had a nice bath one evening as DS had gone to bed much earlier than usual.
I never had a shower growing up. We had a bath only and would have one once a week, maybe twice if we'd got muddy or whatever. So I don't have a default 'shower every day is essential' setting.
I would love to be able to have a shower 3-4 times a week (still think daily is excessive) but at the moment, in the land of being an absolutely knackered full-time working mother, a shower is one job you can let slip. If I need it desperately - ie post-sex (rare) or post-run (rarer) or I'm covered in sick or sweaty after a warm day or my hair is greasy, then I will obviously scotch plans for tidying/washing/relaxing whatever and the shower becomes the priority.
Otherwise, it's juggled like everything else.