It doesnt hurt evry time after you play just to spray some alcohol on a cloth and just quickly wipe the strings down. Just think,evry time you play,sweat and string gunk clogs the windings ,along with natural wear by use and time. Strings will last longer and sound better longer if you take the time to clean them,as you know.strings aren't cheap. As for boiling strings,been there ,done that. In my opinion ,it not worth the effort for the results you get Better to clean them as described regularly.
Strings are hard to remove and even harder to replace.
If your bass has active pickups,you may want to chage more often,if you prefer that bright clean tone of new strings. All in all this cleaning method is quick ,easy,inexpensive,through and cleans the fretboard all at once.