I have always been a big fan of wearing boosters/diaper doublers to help with the capacity of disposable diapers, and I figured I'd tell of my experiences with them. If you appreciate this, it is something I could put in the wiki with a little bit more work, I think.
Abena Abri-Let Normal boosters (pictured middle, below) are my personal favorite. You can get them from XP medical, and they fit well in virtually all youth, small, and medium size diapers. They are the most absorbent booster of this size that I have ever found. If you are having challenges with smaller size diapers not holding enough, and find that medium size diapers are a bit big on you, these are a great solution. You can also put two of them inside a diaper to make it last even longer. A great product.
Abena Abri-Let Maxi boosters (pictured bottom, above) are absolutely huge, and will only work in a medium size or larger diaper. If you're looking to really extend a diaper's capacity, this is the one for you. I've only had limited experience with it (as I rarely wear a medium size), but I can tell you that it extends a medium sized diaper's capacity by more than I've ever seen. You could easily go a full day in one (watch out for rash!!!).
Medline Double-Ups (pictured top, above) would be good in a toddler-size diaper, but don't help a whole lot with the adult diapers.
Tranquility TopLiner (pictured above) are doublers similar to the Abena Abri-Let Normal. Their absorbency is comparable, but definitely not as much as the Abri-Let Normal ones. You can get all of the tranquility products from NorthShore Care, but my advice would be to get the abena boosters over these any day. You'll save money, too. (Abri-Let Normal are $12.95/pack of 50 while the Tranquility TopLiners are $8.79/pack of 25).
Tranquility TopLiner Contours (pictured above) are a very good booster, but again, beware of these in a smaller size diaper. I'd recommend the Abri-Let Maxi over these as well, though these can help with cleanup and they offer extra protection from leaks as they hug the legs when worn.
Of course, I only listed boosters here that can be ordered from the internet, but it's definitely worth a try for all of you, whether your are IC or just like wearing diapers. They can also be especially helpful for those of you that don't have the means to buy higher quality diapers but still want to be able to securely wear a less-expensive brand out of the house.
One thing to beware of, though, is that boosters will increase the thickness of a diaper, ESPECIALLY when they get wet. Thus, tighter fitting jeans and the like would NOT be recommended! Definitely baggy pants/cargo shorts/etc. if you are going somewhere. For this reason, you may choose to only wear them at night.
Does anyone else wear these or have any other recommendations? I'd be happy to hear your feedback.