There are numerous articles online that cover the pro's and con's of the different types of devices available, the logistics as far as fitting, cleaning, and other considerations. (FYI, I recommend a metal device. It will have a psychological effect on your husband of being more like a prison than a plastic one). A quick Google search will lead you to a wealth of information on these subjects, so I won't cover these here. However, the important thing to remember during the initial lock-up period is to constantly remind him that YOU now own his cock. Remind him several times a day of this. Tease him about it. Remind him that he won't be cumming until YOU allow it. Wear the key to his cage on a necklace around your neck, so that he constantly sees it. Dress and act provocatively and suggestively around him while he is locked in his cage. Play with his caged cock and balls, and remark when you see his cock trying to get hard inside its cage. After he's given you as many orgasms as you can handle with his tongue, ask him (sarcastically) if he would like to cum too. Then, when he says, 'yes', express your 'pity' that his release date is still weeks away. Feel his balls to see how full they are. Ask him what he would be willing to do for a blowjob (his answers might surprise you). You might think that all of this is very mean (and it is), but it is important that you do these things to reinforce the fact that you now control his cock and his orgasms. Doing so will amplify the effects of you caging him (particularly numbers 1 and 2 above).
After the initial lock-up period of about three weeks, you should grant him the privilege of an orgasm. Some women couch it as a sort of 'reward' for their husband. How you let him cum is up to you. It can be through sex, or you can give him a blowjob - or you can simply allow him to jerkoff while you supervise. Regardless of how you allow him to cum, you must immediately lock him back in his cage afterwards. There should be no mistake that his enforced chastity will continue.
Going forward, each woman that I've known has handled things differently. Some have kept their husbands on fairly short release schedule of only several weeks between releases, while others have used much longer durations. Some women have incorporated other ways of asserting their authority over their husband and further breaking down their husband's male ego - such as forcing their husband to eat his own cum after being granted the privilege of an orgasm, cuckolding their husband, taking their husband's anal virginity, forcing their husband to perform bi acts, etc. Many women who cage their husband see cuckolding as a natural next step after caging - i.e. even though they are getting as much oral sex as the want from their husband, they feel that they have a need to be filled, and being that their husband's cock is caged, cuckolding is the only other option. Other women have not gone beyond caging their husbands, and have no intention of doing so. Each woman's journey has taken its own unique course.
At some point, I plan to write a follow-up article, perhaps highlighting some of the more interesting journeys briefly described above. In the meantime, if this writing intrigued you, or you are interesting in discussing this subject, I welcome you to contact me through the contact form on this page.