Definitely the Bordo style folding locks are ideal for compact and on the frame mounting. I'd go with one of those for most uses. The Abus folding locks come with a case that can mount to bottle cage bosses with screws or mount with velcro to other points on the frame. I carry a cable for cabling the front wheel. On one bike I installed security bolts on the seat clamp and saddle (Fortified Bike for the saddle bolts and
Specialized for the security seat clamp) so I usually don't cable the saddle. On the other bike, I only have the security seat clamp so I usually cable the saddle and front wheel (carry 2 cables). This is when parked at work but I don't usually bother with the cables for quick stops such as the grocery store or coffee shop. I have multiple locks for different uses/places. I keep one of the larger Abus u-locks at work. When I arrive at work I lock with the Abus folding lock and then go up to my office for the u-lock. I'll take the u-lock off the bike 30 minutes or so before departing for the day. For most of the day, my bikes while I am at work will be locked with two locks and cables for the front wheel and saddle (depending on which bike I have). The u-lock is pretty heavy so I usually leave it at the office. I've been intending to order some more security bolts from Fortified Bike for my other bike but just haven't got around to it.