i love sammiches
for something sweet the best is my peanut butter sandwich which is made by toasting* two slices of whole wheat bread, spreading just a tiny bit of honey on one slice and peanut butter on the other and sticking banana slices inbetween.
*don't try this on your own unless you intend to toast the bread, you simply cannot have soft bread; it'll let you down immensely. the whole thing will become gooby and globby and you really don't want all of that mess up in your mouth.
trust me.
also it's wonderful with lemonade.