Whats the best datebook/agenda/planner?

There really is not a place i can ask this question but I need it for its for a gift my bf NEEDS one. she has 3 kids one autistic and she could really use a good one one that could handle her hectic life. She has for got so many appointments, lost so many addresses,numbers,cards, dont get me started on her checkbook. She NEVER writes what she spent in it. If she had one that had room for her check book cacl too that would be great. she might even use it as her wallet lol thats what her last one was but it just was too small. the card slots tore it wouldnt hold anything she needs a good one.I dont care the price just a nice one that will hold up through 3 crazy kids and a women that is every where.please she is not high tech so no pda shes a paper girl