In the following Wikipedia article, it lists many words that get elided.
- le, la
- je, ce
- me, te, se
- moi, toi
However, it doesn't say if this is a closed set. In other words, is this the complete list or are there other words that get elided too?
The article also mentions that in informal speech but not in writing that tu commonly gets elided to t'es and t'as.