I know you don't want to erase anything, but...
1-
Ditch 'G-Spot' and just drop a bookmarked pin in Google Maps when you need this function.
2-
Do you really need Scribble when you have Sketches?
3-
Do you honestly use iPint and Banner Free?
4-
Shazam and Midomi - Pick one. (I know they're different, but just pick one.)
5-
With 9 pages, which do you think is faster: Finding 'Flashlight' or just opening a blank Safari page?
There are a ton of other things that I could live without, but I'm not gonna tell you how to live. These items just stood out to me as 6 spots you could free up without much pain. You don't have to erase them from the computer, just un-sync them. You can get them back quickly if you change your mind.