Will making him watch porn make him think of other women?  Does It matter as long as you hold the only keys to his cock cage? Make him ultra frustrated, and let him release by pleasuring you

If you choose to sissify him, panties are easy.  After a while, that might be too easy for him.  Start with a bra, to mix things up.

Anklet is nice, but a necklace, earings, or bracelet is more prominent.  Go with whatever draws the most attention.

Once locked up, this is a reasonable way to kick things off

Let him know when he is improving his reward to,service you more,should be plenty of incentive for him to continue improving. Punishment for not improving should be much worse

Using this sentiment in your marriage will divorce-proof your marriage. If he actually does name someone else, it would be a shame for those keys to inadvertently get damaged.  Or it might be time to implement 2 locks, but only pass on one set of keys.  Superglue... Basically, MEN...  Don't mess with your keyholder.

It is best to wake your mistress up right or you may regret the rest of your day

With his cock caged, you can enjoy a quicky wherever and whenever.  Don't need to waste time taking clothes off once he learns to do this well.

You don't have to be exposed or in full dominatrix attire, but you can still make him submit to you in little ways... In full view of the neighborhood.

Best negotiating tactic...  Sit across the table with your shirt open.  Foot teasing his cock.