NSFW - For those of you in a long term relationship, are your sexual encounters scheduled or do they occur randomly?

I mean, do you do it on a schedule like every Wednesday or the second Tuesday of the month or do they occur spontaneously? Is it some combination of the two? Do you have a “date night” and is it expected then?
Part II – Do you have special clothing or fresh underwear that you put on for the occasion? Not necessarily the french maid outfit or the leather boots but just something special? And, if so, does it do anything for you like make you feel special, sexy, or naughty or is it just because your partner likes and requests it and it does nothing for or against you?