The joy of home bargains is that whenever you go in the stock is usually entirely different from one week to the next. Its very much a "we have it while it lasts" experience.
For example, one week I went in and they had a massive tray of chicken bovril for 99p a jar. So I bought 4. But they have never had them since on any occasion I have been. Mug Shots however, they always have.
Princes Tuna is another thing they often have - £2.99 for 4 tins, which is about half the price most shops are now charging for a 4 pack. They also often have Heinz Beans multipacks.
I have the good fortune to have one situated right next door to a decent Aldi, so can do both in one hit and can usually do a full shop between the two, with the exception of cat food and diet coke.