People forget that Confession or as it is now called Reconcilation is a sacrament. We forget that as such it is a true instrument of grace. Confession times should be available more than just on Sat afternoons. I need to go to confession but lack transporation today. I pray I can reach the priest sometime this week for a private session.
There definitely is room for improvement on making Confession more easily available. However this requires extra commitment on the part of many parish priests, and some don't want to do that, sadly. What really drives me up the wall are the parishes that offer Confession "by appointment" only. That's about the worst thing you can do to encourage more people to use the sacrament. Even those who go to Confession regularly rarely get excited and eager to go. It's never fun - nor is it supposed to be. Having a time period, even if it's just an hour every week, where you can go, confess, and continue on makes it a little easier. Many people who barely can drag themselves to "the box" would never get around to calling a priest and setting up an appointment. Not to mention the fact that much of the comforting anonymity of the confessional is lost that way. It's a very intimidating set up.