Simple life hack for this is baby wipes. Cheaper than the adult marketed alternatives (by far) and reduce roll expenditure by a significant margin.

Rotate your arm? Go in from the other side? Maybe slightly less important for dudes, but still a good idea unless you flat out reject the concept of hygiene. One direction is smooth and clear of obstacles for days, the other is not. That truth transcends gender even if a UTI is less of a concern for some.