The key to betting on anything, including acca's, is concentrate on the bet being a winner and not on the odds at all. Forget about their prices. Why they win is that not all favourites win, so just accept this and know that you can get some outsiders or 'other' teams against the favourite.
I don't really go for more than 3 teams in acca's as less chance of winning.
Friday I've gone for the following Both Teams To Score.
19:00 - NEC Nijmegen vs FC Eindhoven (Lost)
19:00 - Helmond Sport vs Telstar (Won)
19:45 - Croatia vs England (Lost)
19:45 - Belgium vs Switzerland (Won)
19:45 - Austria vs Northern Ireland (Lost)
19:00 - AZ Reserves vs FC Utrecht Reserves (Won)
19:45 - St Patricks Athletic vs Shamrock Rovers (Lost)
19:45 - Waterford vs Dundalk (Won)
19:45 - Greece vs Hungary (Lost)
19:00 - Germany U21 vs Norway U21 (Won)
19:00 - Den Bosch vs Dordrecht (Lost)
19:35 - Arbroath vs Edinburgh City (Won)