I've been through all the clipboard apps and although this is simple it doesn't compare with the easiness of having all your items w/ the "right-click" and iPaste's contextual menus. i.e. Message header or ending, your email address etc... all stuff you type out all the time and then right below that you have all the items you have copied recently... You set the number for it to hold.

Now no need to go back, copy-past , copy-paste etc... just copy them all seperately and then go to where you want to paste them and all items are lined up...

Definitely checkout iPaste. Most under-rated pasting application... no other has contextual menu's to my knowledge.