diff --git a/model.go b/model.go
index 7f95acc..5714851 100644
--- a/model.go
+++ b/model.go
@@ -16,7 +16,8 @@ type GimeDB struct {
 	path           string
 	filename, arch string
 
-	AllTypes []int
+	AllTypes        []int
+	TypeCollections map[int]*TimeEntryCollection
 }
 
 const (
@@ -49,10 +50,11 @@ func LoadDatabase(path, name, archName string) (*GimeDB, error) {
 		path = path + "/"
 	}
 	gdb := GimeDB{
-		path:     path,
-		filename: name,
-		arch:     archName,
-		AllTypes: []int{TypeCurrent, TypeRecent, TypeArchive},
+		path:            path,
+		filename:        name,
+		arch:            archName,
+		AllTypes:        []int{TypeCurrent, TypeRecent, TypeArchive},
+		TypeCollections: make(map[int]*TimeEntryCollection),
 	}
 	if err := gdb.initDatabase(); err != nil {
 		fmt.Println(err.Error())
@@ -63,11 +65,15 @@ func LoadDatabase(path, name, archName string) (*GimeDB, error) {
 
 // Load a TimeEntry collection from a database
 func (gdb *GimeDB) LoadTimeEntryCollection(tp int) *TimeEntryCollection {
+	if v, ok := gdb.TypeCollections[tp]; ok {
+		return v
+	}
 	ret := new(TimeEntryCollection)
 	entries := gdb.dbGetAllTimeEntries(tp)
 	for i := range entries {
 		ret.Push(&entries[i])
 	}
+	gdb.TypeCollections[tp] = ret
 	return ret
 }
 
diff --git a/model_timeentry.go b/model_timeentry.go
index dd3ef34..d6177df 100644
--- a/model_timeentry.go
+++ b/model_timeentry.go
@@ -225,6 +225,7 @@ func (gdb *GimeDB) dbGetAllTimeEntries(tp int) []TimeEntry {
 			ret = append(ret, *te)
 		}
 	}
+
 	return ret
 }