A convenient category to make segue preparation a little nicer.

UIViewController+Segue.h

//
//  UIViewController+Segue.h
//  TimeCapsule
//
//  Created by Felix Flores on 12/19/12.
//  Copyright (c) 2012 felixflor.es. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface UIViewController (Segue)

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender;
- (void)prepareFor__SegueIdentifier__Segue:(UIStoryboardSegue *)segue sender:(id)sender;

@end

UIViewController+Segue.m

//
//  UIViewController+Segue.m
//  TimeCapsule
//
//  Created by Felix Flores on 12/19/12.
//  Copyright (c) 2012 felixflor.es. All rights reserved.
//

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wobjc-protocol-method-implementation"
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"

#import "UIViewController+Segue.h"

@implementation UIViewController (Segue)

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    NSString *segueIdentifier = [segue identifier];
    NSString *selectorString = [NSString stringWithFormat:@"prepareFor%@Segue:sender:", segueIdentifier];
    
    SEL selector = NSSelectorFromString(selectorString);
    
    if ([self respondsToSelector:selector]) {
        [self performSelector:selector withObject:segue withObject:sender];
    }
}

- (void)prepareFor__SegueIdentifier__Segue:(UIStoryboardSegue *)segue sender:(id)sender
{
    // This is the method that you will need to override
}

@end

#pragma clang diagnostic pop