Hi Maria - what lovely hubby you have

I run my wedding business using my iPad (original) and use a number of Apps:
Pages (word processing)
Numbers (spreadsheets)
Contract Maker Pro
Portfolio (for showing photo galleries)
GoodReader (pdf and file reader)
Invoice2go
Snapseed (photo tweaks from Nik Software)
Photogene (photo tweaks)
Dropbox (for file sharing)
Of course, there are many alternative Apps, but however you use your sparkly new device in your business, make a habit of ensuring you regularly Sync all the data as a backup to your main computer.

HTH
Francis