Hey um for those of you with small cages? My cage is actually fairly big but still small enough to fit in the dishwasher when dismantled. Even without detergent the high pressure, super hot water gets it clean and sanitized with virtually no work... Of course, this does not happen often... It is a very big cage for such a tiny little budgie and he barely spends any time in it anyway, he does not even eat in there, so it only usually needs cleaning like this once a month or so.
His jungle gym is another matter entirely.
The jungle gym is hand-made by me. The base is two large shoe boxes bound together using lots of hot glue and attached to the wall with T-pins and a support from below. It is filled with sand for catching poop. Once a day I run a small rake through the sand to turn the poop over - it will need changing for the first time soon and I have had it for 2 months! Nice idea, yes?
The perches and structure are another matter. It is made entirely out of wooden dowels, steel wire, and hot glue (non toxic, essentially plastic with a low melting point.) and the entire thing is tightly bound with yarn wrapped tightly around and then held over a candle to melt the fibers in the yarn together creating a very rough texture that has a nice grip.
Keeping this sanitary can be a little challenging as it is soft material and thus cannot be cleaned the same way, however, the perches are positioned in such a way that it is unlikely poop will ever fall on them (It has once in the two months since I built it. Just once.) So I got a little spray bottle and have been spraying it down with a diluted lemon juice and baking soda mixture to sanitize it (I noticed others have mentioned the combo!) a couple of times a week. If anyone wants instructions on how to make one of these, send me a PM!